specifiers & installers guide to torsion bar applications · a sauber torsion bar can eliminate...

Specifiers & Installers Guide To

TORSION BAR APPLICATIONS

WELCOME

Thank you for specifying Sauber Torsion Bars.

By choosing us as your stability partner, you derive the following benefits:

* Improved Stability *

Stability is safety, and safety is our first concern. A Sauber Torsion Bar can eliminate unwanted counterweight, offering your users an extra safety margin.

Because Sauber bars don't rigidize the chassis frame, they always provide a smooth, quiet ride.

* Long Life *

Premium bronze and galvanized components. Bushings guaranteed and replaced as/if needed for 10 years. 10 Year parts coverage when inspected at no greater than four month intervals.

* Excellent Documentation *

Our comprehensive applications charts, installation instructions and detailed drawings provide the vital information you and your installers need in an organized format.

* Superior Support *

Toll-free phone and fax service from anywhere in North America provides easy access to the resources of our organization through your personal company representative.

* Lower Life Cycle Costs *

Since it takes less time to mount our bar, its installed cost can actually be less than other alternatives. Sauber Torsion Bars are designed and built to last as long as your chassis.

* Extensive Inventory *

Our inventory power puts our bar on the floor just when you want it. Your production schedule can't wait on your suppliers, and with us as your partner, it won't.

* More Choices *

Underframe or overframe, nobody provides more installation options than we do. More choices mean a better fit for your particular application and less "customizing" on the shop floor.

* Simplified Pricing *

Sauber Torsion Bars have just four pricing levels: A, B, C & D

Torque & Inspection Guidelines

3/2014 Page 1

Un-plated Torque (ft-lbs)

Min-Max

Zinc Plated Torque (ft-lbs)

Min-Max

Fastener Specifications & Application Information

Spring Set U-Bolt Nuts

108-137 --- 1/2"-20 Grade 8 Bolts

96-128 --- 1/2"-13 Grade 8 Bolts

153-205 --- 9/16"-18 Grade 8 Bolts

137-184 --- 9/16"-12 Grade 8 Bolts

233-310 --- 5/8"-18 Grade 8 Bolts

191-255 --- 5/8"-11 Grade 8 Bolts

379-504 --- 3/4"-16 Grade 8 Bolts

339-451 --- 3/4"-10 Grade 8 Bolts

485-728 --- 7/8"-9 Grade 8 Bolts

893-1190 --- 1"-12 Grade 8 Bolts

48-67 (N-m) --- 12mm x 1.75 Class 5.8

76-105 (N-m) --- 14mm x 2.00 Class 5.8

117-163 (N-m) --- 16mm x 2.00 Class 5.8

231-319 (N-m) --- 20mm x 2.50 Class 5.8

399-551 (N-m) --- 24mm x 3.00 Class 5.8

--- 28-39 3/8"-16 Grade C Lock Nuts

--- 63-88 1/2"-13 Grade C Lock Nuts

--- 127-172 5/8"-11 Grade C Lock Nuts

--- 218-295 3/4"-10 Grade C Lock Nuts

Torque Assumptions & Important Information

1. Torque values are provided for lubricated bolts. For dry, unlubricated bolts increase torque values by 10%. 2. Values shown for Grade 8 bolts are based on alloy steel heat-treated bolts with a minimum tensile strength of 120,000 PSI.

Nut values shown are for all metal prevailing torque "crown type" lock nuts. 3. If fasteners are encountered or used that are outside the assumptions stated above, the installer is responsible for determining

the proper torque level based on the fastener manufacturer's recommendations. This information is intended only as a guide. Manufacturer's torque ratings should be followed at all times.

Inspection 1. Check fastener torque at semi-annual periods 2. Check bushing condition quarterly. 3. Check weldments and casting conditions quarterly 4. Check items 1-3 before and after each stability test

Torsion Bar Applications Chart

4/2017

Overframe Rear Underframe Rear Underframe Front 1

Dodge/Chrysler

D350/W350 - 1993 & Prior 8700-DB

D3500 8700-D1B

D4500/5500 8750-D1

Ford

E350 Van

F350 - 2WD & 4WD 8700-FB - '98 & Prior 8700-F5B (f) 8700-F6B (r)

F450 8750-F8 (r) 8750-F7 - 2.5” Bar (f)

’16 & Prior: 8700-F7 – 2” Bar (r)

8750-F6 – 2.5” Bar (r) 8700-F8 – 2" Bar (f)

8750-F5B – 2.5" Bar (f)

8705-F2B - '03 & Prior 8705-FA – ’16 & Prior

8705-F4B - '98 & Prior 8705-F9B – ’16 & Prior 2WD &

4WD 8735-F1 - '99 & newer 2WD &

4WD

F550 8750-F8 (r) 8750-F7 (f)

8750-F6 – ’16 & Prior (r) 8750-F5B – ’16 & Prior (f)

8705-F2B - '03 & Prior 8705-FA – ’16 & Prior

8705-F9B – ’16 & Prior 2WD & 4WD

8735-F1 – ’99 & newer 2WD & 4WD w/6.0L Diesel

F650/F750 8750-B - '03 & Prior 8750-N1 (f))

8755-F8B 8755-F7B - 9K 2WD '03 & Prior 8755-F9 - 12K 2WD '03 & Prior

8755-FB - 8.5K 2WD 8755-FC - 10-12K 2WD

LCF 8750-N1 (f))

F600/CF6000/F700/LN-CF7000 8750-CFB or 8750-B Multi-leaf springs--8755-F2B Tapered leaf springs w/ shock

absorbers--8755-F3B

8755-F1B

F800/L-LN-LS-CF8000 8750-CFB or 8750-B Multi-leaf springs--8755-F4B Tapered leaf springs w/ shock

absorbers--8755-F5B

8500 GAWR--8755-F1B 12000 GAWR--8755-F6B

Freightliner

FL-60/FL70/FL80/FS-65 8750-L1B 8755-B Not compatible w/ air brakes 8755-L3--Shock absorbers

Code 400-029 8K axle w/ 3"W Springs or Code 400-024 10K axle w/ 3"W springs - 8755-L2B Code 400-024 10K axle w/ 4"W springs or Code 400-003 12K axle w/ 4"W springs - 8755-L1B

Business Class M2 8750-L1B 8755-B Compatible w/ forward mount-

ed air brakes 8755-L3--Shock absorbers

GM/Chevy

CR3/CV3/CP3/TR3/TV3/TP3 8700-CB

TK3/TC3/TP3/CK3/CC3/CP3 P30 Chassis w/ 11,000 # rear end (8700-C4B)

8700-C1B (f) 8700-C4B - '00 & Prior

8700-C5B (r)

Vandura 3500 - 11000 GVW

Torsion Bar Applications Chart

4/2017 Page 4

Overframe Rear Underframe Rear Underframe Front 1

3500 Cutaway - 12000 GVW 8700-C6B

3500HD 8700-C3B 8705-C4B

C5D/C6D/C7D/P6T 8750-CFB or 8750-B 8755-C5

C5H/C6H/C7H/P6S (KoDia. c) '02 & Prior

8750-C2B 8755-C2B

C6/C7/C8 - C/E/V Cab Styles '03 & Newer

8750-C2B 8755-C7 with and without shock absorbers

8755-C6 - 10K 8755-C3 - 12K w/ stabilizer

C4/C5 - C/E/U/V Cab Styles '03 & Newer

8750-C4 8755-C4

W4/W5/W6 - Isuzu NPR/NRR/FSR

8750-C3B

Navistar

4200/4300/4400 2WD 8750-N1 (r) Leaf springs--8755-N7B (r) Leaf springs--8755-NC (f)

8K GAWR--8755-ND 10K-12K GAWR--8755-NA

1452/1652/1400/1600/1654/ 1754/1854/1954 2155/2375/2575/2554/2574/ 2674/2675 4600/4700/4900

8750-NB or 8750-B Leaf springs--8755-N7B Leaf springs w/ shock absorb-

ers--8755-N8B Air Suspension--8755-N4B

GAWR<10K 8755-N5B GAWR=10K-13K 8755-N3B

GAWR=14K 8755-N6B

4700/4800 4WD 8750-NB or 8750-B 8755-N1B 8755-N9 - 9K & 12K axles

4600LP/4700LP 8750-NB or 8750-B 8755-N2B

7300/7400 4WD 8750-N1 (r) 8755-NH GAWR=10K-14K--8755-NE

7300/7400 2WD 8750-N2 (r)

Sterling

Acterra M5500/6500/7500/8500 17.5K & 21K GAWR--8755-B

Acterra 20K GAWR w/Air Brakes--8755-S1

Notes: 1 Underframe front bars have been discontinued - information here provides parts and service support (f) Bar can only be mounted forward of axle (r) Bar can only be mounted rearward of axle

When ordering whole assemblies, please provide the following:

Torsion Bar Model

Chassis Year, Make & Model GAWR (Rear Axle) & GVWR

When sourcing parts, please provide the following:

Torsion Bar Location Chassis Year, Make & Model GAWR (Rear Axle) & GVWR Bushing Type: 1) Steel Encased Rubber or 2) Urethane - Specify Orange or Blue Toggle Link Length

Torsion Bar Components Breakdown

04/2017

Model

Price Code

Apox Weight

Drawing

Anchor Bracket

Frame Bracket

Toggle Link

Bar/Arm

Overframe Applications

8700-C A 115 lbs. 1177ST 10151 10210 10053 10083

8700-CB 115 lbs. 4141ST 10152 10210 10060 10084

8700-C1 115 lbs. 1177ST 10151 10212 10053 10083

8700-C1B 115 lbs. 4141ST 10152 10212 10060 10084

8700-C2 115 lbs. 1177ST 10159 10212 10053 10088

8700-C3 110 lbs. 1177ST 10159 10212 10053 10092

8700-C3B 110 lbs. 4141ST 10160 10212 10060 10093

8700-C4 115 lbs. 1177ST 10159 10210 10053 10083

8700-C4B 115 lbs. 4141ST 10160 10210 10060 10084

8700-C5B 115 lbs. 4141ST 10152 10212 10061 10105

8700-C6B B 115 lbs. 4141ST 10152 10212 10060 11257

8700-F A 115 lbs. 1177ST 10151 10209 10053 10083

8700-FB 115 lbs. 4141ST 10152 10209 10060 10084

8700-F1 115 lbs. 1177ST 10153 10209 10053 10083

8700-F2 B 120 lbs. 1211ST 10159 10217 10053 10090

8700-F2B 120 lbs. 3906ST 10160 10217 10060 10091

8700-F8 120 lbs. 3906ST 11674 10217 10060 14611

8700-F3 A 120 lbs. 1177ST 10159 10212 10053 10090

8700-F3B 120 lbs. 4141ST 10160 10212 10060 10091

8700-F4 110 lbs. 1177ST 10159 10212 10053 10101

8700-F4B 110 lbs. 4141ST 10160 10212 10060 10102

8700-F7 110 lbs. 4141ST 11674 10212 10060 10102

8700-F5 B 115 lbs. 1211ST 10155 10217 10053 10090

8700-F5B 115 lbs. 3906ST 10156 10217 10060 10091

8700-F6 A 110 lbs. 1177ST 10155 10212 10053 10103

8700-F6B 110 lbs. 4141ST 10156 10212 10060 10104

8700-D 120 lbs. 1177ST 10151 10209 10053 10085

8700-DB 120 lbs. 4141ST 10152 10209 10060 10086

8700-D1 120 lbs. 1177ST 10159 10212 10053 10094

8700-D1B 120 lbs. 4141ST 10160 10212 10060 10095

8750 C 145 lbs. 1579ST 10164 10230 10053 10114

8750-B 145 lbs. 4137ST 11674 10230 10060 10119

8750-C2 145 lbs. 1579ST 10162 10230 10053 10114

8750-C2B 145 lbs. 4137ST 10163 10230 10060 10119

8750-C3 145 lbs. 1579ST 10174 10230 10053 10112

8750-C3B 145 lbs. 4137ST 10175 10230 10060 10113

8750-CF C 145 lbs. 1177ST 10157 10227 10053 10106

8750-CFB 145 lbs. 4141ST 10158 10227 10060 10107

8750-C4 145 lbs. 10163 10245 10060 10119

8750-D1 S1025ST 17234 10245 17235 17233

8750-F4 150 lbs. 1211ST 10159 10229 10053 10108

8750-F5 150 lbs. 10164 10229 10053 10108

8750-F4B 150 lbs. 3906ST 10160 10229 10060 10110

8750-F5B 150 lbs. 11674 10229 10060 10110

8750-F7 150 lbs. 20000 10229 10060 10110

8750-F6 C 150 lbs. S3259 11674 10245 10060 19178

8750-F8 150 lbs. S4093 20000 10245 10060 19178

8750-L1 C 145 lbs. 1579ST 10164 10230 10053 10106

8750-L1B 145 lbs. 4137ST 11674 10230 10060 10107

8750-N 140 lbs. 1177ST 10164 10228 10053 10106

8750-NB 140 lbs. 4141ST 11674 10228 10060 10107

8750-N1 140 lbs. 4141ST 10176 10245 10062 10120

8750-N2 140 lbs. 4141ST 10176 10245 10060 10120

Underframe Models

8705-C2 B 150 lbs. 1172ST 10184 10080 10055 10122

8705-C3 155 lbs. 10185 10080 10055 10122

8705-C4 145 lbs. 2200ST 10166 10170

10215 10216

10053 10098

8705-C4B 145 lbs. 4143ST 10169 10171

10215 10216

10060 10100

8705-F2 150 lbs. 1584ST 10182 10218 10055 10125

8705-F2B 150 lbs. 4138ST 10183 10219 10062 10126

8705-FA 150 lbs. 4138ST 10183 15160 10062 10126

8705-F3 A 130 lbs. 1624ST 10154 10211 10053 10087

8705-F4 B 125 lbs. 1974ST 10166 10172

10213 10214

10053 10096

8705-F4B 125 lbs. 4144ST 10167 10173

10213 10214

10060 10097

8705-F5 150 lbs. 2428ST 10194 10220 10053 10133

8705-F6 155 lbs. 1584ST 10195 10220 10053 10136

8705-F7 8705-F8 8705-F9

B 155 lbs. 10199 10201

10221 10223

10054 10143

8705-F9B 155 lbs. 4138ST 10200 10202

10222 13012

10061 10144

8735-F1 175 lbs. 3581ST 10177 10224 10226

10060 10121

8755 8755-F4 8755-F5 8755-N7 8755-N8

C 185 lbs. 1172ST 10178 10078 10056 10122

8755-B 8755-F4B 8755-F5B 8755-N7B 8755-N8B

185 lbs. 4142ST 10179 10079 10063 10123

8755-F6 C 140 lbs. 2134ST 10186 10240 10053 10141

8755-F6B 140 lbs. 3867ST 10187 10241 10060 10142

8755-F7 200 lbs. 2155ST 10203 10242 10053 10145

8755-F7B 200 lbs. 4140ST 10204 10243 10060 10146

8755-F8 190 lbs. 1172ST 10205 10078 10056 10147

8755-F8B 130 lbs. 5536ST 10206 10079 10063 10148

8755-F9 C 140 lbs. 3867ST 10208 13013 10060 13359

8755-C2 190 lbs. 1675ST 15134 10078 10057 10122

8755-C2B 190 lbs. 4139ST 15134 10079 10064 10123

8755-C3 115 lbs. 5063ST 10208 13275 10060 13276

8755-C4 185 lbs. 5115ST 13672 10079 10061 13673

8755-C5 185 lbs. 4139ST 15134 10079 10063 10123

8755-C6 118 lbs. 5063ST 10208 13275 10060 14609

8755-C7 185 lbs. 4139ST 15134 10082 10063 10123

8755-F1 115 lbs. 2155ST 10188 12978 10053 10129

8755-F1B 115 lbs. 4140ST 10189 12962 10060 10130

8755-FB D 145 lbs. 5063ST 12998 15733 10060 14626

8755-FC 145 lbs. 5063ST 10208 15733 10060 10130

8755-L1 C 110 lbs. 2155ST 10190 10235 10053 10131

8755-L1B 110 lbs. 4140ST 10191 10236 10060 10132

8755-L2 115 lbs. 2155ST 10198 10235 10053 10137

8755-L3 185 lbs. 5536ST 15107 10079 10063 10123

8755-L2B 115 lbs. 4140ST 10198 10236 10060 10138

8755-N1 185 lbs. 1172ST 10178 10081 10058 10122

8755-N1B 185 lbs. 4142ST 10179 10082 10065 10123

8755-N2 8755-F2 8755-F3

C 185 lbs. 1172ST 10178 10078 10055 10122

8755-N2B 8755-F2B 8755-F3B

185 lbs. 4142ST 10179 10079 10062 10123

8755-N3 110 lbs. 2134ST 10186 10231 10053 10127

8755-N3B C 110 lbs. 3867ST 10187 10232 10060 10128

8755-N4 160 lbs. 2254ST 10192 10237 10067 10122

8755-N4B 160 lbs. 4145ST 10193 10237 10067 10123

8755-N5 145 lbs. 2155ST 10196 10238 10053 10134

8755-N5B 145 lbs. 4140ST 10197 10239 10060 10135

8755-N6 120 lbs. 2134ST 10186 10231 10053 10139

8755-N6B C 120 lbs. 3867ST 10187 10232 10060 10140

8755-N9 170 lbs. 3849ST 10207 10244 10060 10149

8755-NC 185 lbs. 4142ST 10179 10082 10062 10123

8755-NA D 145 lbs. 5063ST 10208 12825 10060 10150

8755-ND 145 lbs. 5063ST 12998 12825 10060 13357

8755-NE 145 lbs. 4853ST 13011 13672

12956 10060 13361

8755-NH C 185 lbs. 4142ST 10179 10082 10063 10123

8755-S1 C 185 lbs. 5536ST 16912 16914

16915 10062 16911

Torsion Bar Components List 04/2017

Part Number Item Number Description

8700-01 10045 Anchor Bracket Bushing - 110480

8735-01 10046 Blue Urethane Bushing Set - 3651ST (each link requires (2) sets)

8735-03 10047 Orange Urethane Bushing Set - 3851ST (each link requires (2) sets) Note: This part is not a direct replacement for 8700-01 without complete toggle link

8735-02 10048 Toggle Link 3/4" Dia. Stud w/ Lock Nuts - 3659ST

8700-02 10049 (Obsolete) 13048 (Current)

Upper Rubber Insert Set - 2" (each bar requires (2) sets)

8750-01 10050 (Obsolete) 13047 (Current)

Upper Rubber Insert Set - 2.5" (each bar requires (2) sets)

8755-01 10051 Beveled Spacer - Underbody - 2565ST

8755-02 10052 Cross-tube Clamp Bracket - Underbody

Toggle Links

8700-ADB 10053 Toggle Link w/ Orange Bushings - 3.0" C/C Holes

8755-BKB 10054 Toggle Link w/ Orange Bushings - 5.0" C/C Holes

8755-AGB 10055 Toggle Link w/ Orange Bushings - 9.0" C/C Holes

8755-ACB 10056 Toggle Link w/ Orange Bushings - 11.0" C/C Holes

8755-AFB 10057 Toggle Link w/ Orange Bushings - 13.5" C/C Holes

8755-BDB 10058 Toggle Link w/ Orange Bushings - 16.0" C/C Holes

8755-ANB 10059 Toggle Link w/ Orange Bushings - 18.0" C/C Holes

8735-AA 10060 Toggle Link w/ Blue Bushings - 3847ST - 3"

8735-AB 10061 Toggle Link w/ Blue Bushings - 3847ST - 5"

8735-AC 10062 Toggle Link w/ Blue Bushings - 3847ST - 9"

8735-AD 10063 Toggle Link w/ Blue Bushings - 3847ST - 11"

8735-AE 10064 Toggle Link w/ Blue Bushings - 3847ST - 13.5"

8735-AF 10065 Toggle Link w/ Blue Bushings - 3847ST - 16"

8735-AG 10066 Toggle Link w/ Blue Bushings - 3847ST - 18"

8755-BF 10067 Spherical Rod End Toggle Link w/ Spacers - 4.0" C/C Holes - 2618ST

17235 Toggle Link w/ Blue Bushings - S1023ST

8755-03 10068 Flat Washer - 1.75"OD x .75"ID x .25"Thick

8755-04 11074 11039 11041 11005

FAST - .75"-10x4.50"L Grade 8 Bolt w/ Washers & Nut

8700-12 10070 11002 13280

U-Bolt, Square Bend - .625"Dx5.5"Lx2.625"W w/ Washers & Nuts - LS

8700-14 11067 11002 11040 10297

FAST - .625"-11x6.0"L Grade 8 Bolt w/ Washers & Nut

8700-15 13328 11004 11003

FAST - .50"-13x3.75"L Bolt w/ Washer & Nut



8700-16 11075 FAST - .75"-10x5.50"L Grade 8 Bolt Only



8700-20 11081 FAST - 1.0"-8x5.5"L Grade 8 Bolt Only

8700-21 10071 Spacer - .75"ODx.50"IDx3.688"L Pipe

8700-22 10072 Drill Template - 2523ST

8700-23 10073 Spacer Kit for 3/4" & 7/8" U-Bolts - DWG 2809ST Includes: (1) Spacer Plate - 2"x.188"x5.75"L - For 3/4" U-Bolts - 2492ST (1) Spacer Plate - 2"x.250"x5.75"L - For 7/8" U-Bolts - 2491ST

8700-24 10074 Spacer - 1.25"ODx.75"IDx2.31"L Pipe

8700-26 10075 Spacer Kit - DWG 2809ST (1) Spacer Plate - 2"x.188"x5.75"L for 3/4" U-Bolts - 2492ST (1) Spacer Plate - 2"x.250"x5.75"L for 7/8" U-Bolts - 2491ST (2) Spacers - 1.00"IDx1.50"ODx.9375"L Pipe (1) Spacer Kit installation DWG 2809ST

8700-27 10076 Spacer Kit - DWG 2810ST (2) 1.00"IDx1.50"ODx.25"L Pipe (4) 5.0 Degree beveled spacers - 1.00"IDx1.50"ODx.375"L (1) Spacer Kit installation DWG 2810ST

8700-28 10077 Spacer Kit - DWG 2810ST (2) 1.00"IDx1.50"ODx1.75"L Pipe (4) 5.0 Degree beveled spacers - 1.00"IDx1.50"ODx.375"L (1) Spacer Kit installation DWG 2810ST

8700-29 11052 11004 11003

FAST - .50"-13x4.50"L Bolt w/ Washer & Nut

8700-31 11074 11005

FAST - .75"-10x4.50"L Grade 8 Bolt & Nut

8700-32 13325 11005

FAST - .75"-10x5.00"L Grade 8 Bolt & Nut

8700-35 13316 FAST - 1.0"-8x8.0"L Grade 8 Bolt Only

8755-AB 10078 Frame Cross-tube w/ Bushings - 41.5" O.L. - 1124ST

8755-ABB 10079 Frame Cross-tube w/ Bushings - 41.5" O.L. - 1124ST

8755-AK 10080 Frame Cross-tube w/ Bushings - 41.5" O.L. - High Profile - 1568ST

8755-BE 10081 Frame Cross-tube w/ Bushings - 41.5" O.L. - 7" Drop - 2555ST

8755-BEB 10082 Frame Cross-tube w/ Bushings - 41.5" O.L. - 7" Drop - 2555ST

16915 Frame Cross-tube w/ Bushings - 43.5" O.L. - 5" Drop - 7032ST

8700-03 10083 Bar/Arm Weldment - 2"x40.25" - 18.5" C/C Holes - 21.0" Arm Length - 1113ST

8700-03B 10084 Bar/Arm Weldment - 2"x40.25" - 18.5" C/C Holes - 21.0" Arm Length - 1113ST














8700-11 10096 Bar/Arm Weldment - 2"x27" Offset - 14.0" C/C Holes - 17.4" Arm Length - 2099ST

8700-11B 10097 Bar/Arm Weldment - 2"x27" Offset - 14.0" C/C Holes - 17.4" Arm Length - 2099ST

8700-17 10098 Bar/Arm Weldment - 2"x22" - 16.5" C/C Holes - 19.625" Arm Length - 2198ST

8700-17B 10100 Bar/Arm Weldment - 2"x22" - 16.5" C/C Holes - 19.625" Arm Length - 2198ST







14611 Bar/Arm Weldment - 2"x41.50" - 17.5" C/C Holes - 21.1" Arm Length - 5354ST

8750-02 10106 Bar/Arm Weldment - 2.5"x40.25" - 17.0" C/C Holes - 20.5" Arm Length - 1119ST

8750-02B 10107 Bar/Arm Weldment - 2.5"x40.25" - 17.0" C/C Holes - 20.5" Arm Length - 1119ST









8735-AK 10121 Bar/Arm Weldment - 2.5"x39.125" - 34.625" C/C Holes - 37.125" Arm Length - 3579ST

8755-AD 10122 Bar/Arm Weldment - 2.5"x40.50" - 16.0" C/C Holes - 19.0" Arm Length - 1170ST

8755-ADB 10123 Bar/Arm Weldment - 2.5"x40.50" - 16.0" C/C Holes - 19.0" Arm Length - 1170ST

8755-AH 10124 Bar/Arm Weldment - 2.5"x40.25" - 16.0" C/C Holes - 19.0" Arm Length - 1573ST

8755-AL 10125 Bar/Arm Weldment - 2.5"x41.50" - 23.0" C/C Holes - 25.5" Arm Length - 1574ST

8755-ALB 10126 Bar/Arm Weldment - 2.5"x41.50" - 23.0" C/C Holes - 25.5" Arm Length - 1574ST

8755-AP 10127 Bar/Arm Weldment - 2.5"x35.00" - 22.5" C/C Holes - 25.5" Arm Length - 2581ST

8755-APB 10128 Bar/Arm Weldment - 2.5"x35.00" - 22.5" C/C Holes - 25.5" Arm Length - 2581ST

8755-AQ 10129 Bar/Arm Weldment - 2.5"x32.00" - 21.0" C/C Holes - 23.5" Arm Length - 2580ST

8755-AQB 10130 Bar/Arm Weldment - 2.5"x32.00" - 21.0" C/C Holes - 23.5" Arm Length - 2580ST



8755-AT 10131 Bar/Arm Weldment - 2.5"x33.00" - 25.5" C/C Holes - 28.0" Arm Length - 2585ST

8755-ATB 10132 Bar/Arm Weldment - 2.5"x33.00" - 25.5" C/C Holes - 28.0" Arm Length - 2585ST

8755-AW 10133 Bar/Arm Weldment - 2.5"x36.50" - 23.0" C/C Holes - 25.5" Arm Length - 2582ST

8755-AY 10134 Bar/Arm Weldment - 2.5"x35.00" - 19.5" C/C Holes - 22.0" Arm Length - 2584ST

8755-AYB 10135 Bar/Arm Weldment - 2.5"x35.00" - 19.5" C/C Holes - 22.0" Arm Length - 2584ST

8755-BA 10136 Bar/Arm Weldment - 2.5"x36.50" - 28.9" C/C Holes - 31.4" Arm Length - 2583ST

8755-BB 10137 Bar/Arm Weldment - 2.5"x33.00" - 22.4" C/C Holes - 24.9" Arm Length - 2586ST

8755-BBB 10138 Bar/Arm Weldment - 2.5"x33.00" - 22.4" C/C Holes - 24.9" Arm Length - 2586ST

8755-BG 10139 Bar/Arm Weldment - 2.5"x31.75" - 22.5" C/C Holes - 25.5" Arm Length - 2645ST

8755-BGB 10140 Bar/Arm Weldment - 2.5"x31.75" - 22.5" C/C Holes - 25.5" Arm Length - 2645ST

8755-BH 10141 Bar/Arm Weldment - 2.5"x34.00" - 25.0" C/C Holes - 27.5" Arm Length - 2844ST

8755-BHB 10142 Bar/Arm Weldment - 2.5"x34.00" - 25.0" C/C Holes - 27.5" Arm Length - 2844ST

8755-BL 10143 Bar/Arm Weldment - 2.5"x38.75" - 28.5" C/C Holes - 31.0" Arm Length - 3009ST

8755-BLB 10144 Bar/Arm Weldment - 2.5"x38.75" - 28.5" C/C Holes - 31.0" Arm Length - 3009ST

8755-BP 10145 Bar/Arm Weldment - 2.5"x33.88" - 21.0" C/C Holes - 23.5" Arm Length - 3502ST

8755-BPB 10146 Bar/Arm Weldment - 2.5"x33.88" - 21.0" C/C Holes - 23.5" Arm Length - 3502ST

8755-BR 10147 Bar/Arm Weldment - 2.5"x40.50" - 21.0" C/C Holes - 23.5" Arm Length - 3504ST

8755-BRB 10148 Bar/Arm Weldment - 2.5"x40.50" - 21.0" C/C Holes - 23.5" Arm Length - 3504ST

8755-BT 10149 Bar/Arm Weldment - 2.5"x37.50" - 23.0" C/C Holes - 25.5" Arm Length - 3773ST

8755-BU 10150 Bar/Arm Weldment - 2.5"x32.00" - 22.0" C/C Holes - 24.5" Arm Length - 4511ST

8755-BX 13357 Bar/Arm Weldment - 2.5"x32.00" - 19.5" C/C Holes - 22.0" Arm Length - 4549ST

8755-BY 13359 Bar/Arm Weldment - 2.5"x34.00" - 23.9" C/C Holes - 26.4" Arm Length - 4618ST

8755-BZ 13361 Bar/Arm Weldment - 2.5"x36.50" - 18.5" C/C Holes - 21.0" Arm Length - 4854ST

8755-EC 13276 Bar/Arm Weldment - 2.5"x33.00" - 21.8" C/C Holes - 24.3" Arm Length - 5067ST

13673 Bar/Arm Weldment - 2.5"x40.25" - 30.3" C/C Holes - 32.8" Arm Length - 5111ST


11910 Bar/Arm Weldment - 3"x40.50" - 16.0" C/C Holes - 19.0" Arm Length - 5322ST



17233 Bar/Arm Weldment - 2.5"x44.25" - 10.0" C/C Holes - 13.6" Arm Length -S1024ST

19178 Bar/Arm Weldment – 2.5”x41.50” - 13” C/C Holes – 16.625” Arm Length – 19178.SLDDRW

8700-AA 10151 Anchor Bracket - TB12 - 3110ST

8700-AAB 10152 Anchor Bracket - TB12 - 3110ST

8700-AB 10153 Anchor Bracket - TB12F - 2959ST

8700-AG 10154 Anchor Bracket - E351

8700-AN 10155 Anchor Bracket - 2965ST

8700-ANB 10156 Anchor Bracket - 2965ST



8750-AA 10157 Anchor Bracket - TB24 - 3109ST

8750-AAB 10158 Anchor Bracket - TB24 - 3109ST

8750-AB 10159 Anchor Bracket - SBC451 - 2960ST

8750-ABB 10160 Anchor Bracket - SBC451 - 2960ST

8750-AF 10161 Anchor Bracket - G567H

8750-AG 10162 Anchor Bracket - 52291 - 1558ST

8750-AGB 10163 Anchor Bracket - 52291 - 1558ST

8750-AI 10164 Anchor Bracket - TBFL - 3889ST

8750-AIB 11674 Anchor Bracket - TBFL - 3889ST

8750-AJ 10166 Anchor Bracket - UBF2-F - 4.50" C/C Holes

8750-AJB 10167 Anchor Bracket - UBF2-F - 4.50" C/C Holes

8750-AM 10168 Anchor Bracket - UBF2-C1 - 3.25" C/C Holes

8750-AMB 10169 Anchor Bracket - UBF2-C1 - 3.25" C/C Holes

8750-AQ 10170 Anchor Bracket - UBF2-C2 - 2.44" C/C Holes

8750-AQB 10171 Anchor Bracket - UBF2-C2 - 2.44" C/C Holes

8750-AR 10172 Anchor Bracket - UBF2-F - 3.25" C/C Holes

8750-ARB 10173 Anchor Bracket - UBF2-F - 3.25" C/C Holes

8750-BO 10174 Anchor Bracket - NPRW - 3298ST

8750-BOB 10175 Anchor Bracket - NPRW - 3298ST

8750-BP 10176 Anchor Bracket - N4400 - 4497ST

8735-AH 10177 Anchor Bracket - 3577ST

8755-AA 10178 Anchor Bracket - UB8755 - 2454ST

8755-AAB 10179 Anchor Bracket - UB8755 - 2454ST

8755-AE 10180 Anchor Bracket - UBB1 - 1639ST

8755-AEB 10181 Anchor Bracket - UBB1 - 1639ST

8755-AI 10182 Anchor Bracket - 1577ST

8755-AIB 10183 Anchor Bracket - 1577ST

8755-AJ 10184 Anchor Bracket - 1578ST

8755-AM 10185 Anchor Bracket - 1844ST

8755-AO 10186 Anchor Bracket - 2567ST

8755-AOB 10187 Anchor Bracket - 3865ST

8755-AR 10188 Anchor Bracket - 2566ST

8755-ARB 10189 Anchor Bracket - 2566ST

8755-AS 10190 Anchor Bracket - 2572ST

8755-ASB 10191 Anchor Bracket - 2572ST

8755-AU 10192 Anchor Bracket - 2568ST

8755-AUB 10193 Anchor Bracket - 2568ST

8755-AV 10194 Anchor Bracket - 2569ST



8755-AX 10195 Anchor Bracket - 2570ST

8755-AZ 10196 Anchor Bracket - 2571ST

8755-AZB 10197 Anchor Bracket - 2571ST

8755-BCB 10198 Anchor Bracket - 2573ST

8755-BI 10199 Anchor Bracket w/ (4)-1.75"L + (4)-.50"L Pipe Spacers - 3001ST - Street-side

8755-BIB 10200 Anchor Bracket w/ (4)-1.75"L + (4)-.50"L Pipe Spacers - 3001ST - Street-side

8755-BJ 10201 Anchor Bracket w/ (4)-2.125"L + (4)-.50"L Pipe Spacers - 3001ST - Curbside

8755-BJB 10202 Anchor Bracket w/ (4)-2.125"L + (4)-.50"L Pipe Spacers - 3001ST - Curbside

8755-BO 10203 Anchor Bracket - 3501ST

8755-BOB 10204 Anchor Bracket - 3501ST

8755-BQ 10205 Anchor Bracket - 3525ST

8755-BQB 10206 Anchor Bracket - 3525ST

8755-BS 10207 Anchor Bracket - 3771ST

8755-BV 10208 Anchor Bracket - 4498ST

8755-BW 12998 Anchor Bracket - 4548ST

8755-EA 13010 Anchor Bracket - 4858ST - Street-side

8755-EB 13011 Anchor Bracket - 4858ST - Curbside

13672 Anchor Bracket - 5113ST

14802 Anchor Bracket w/ Spacer - Modified UB8755 - 5375ST

15107 Anchor Bracket w/ Pipe Spacers - 5535ST

15134 Anchor Bracket - 5550ST

16912 Anchor Bracket - 7034ST - Curbside

16914 Anchor Bracket - 7037ST - Street-side

17234 Anchor Bracket - S1022ST

20000 Anchor Bracket – S4045 - Galv

8700-AC 10209 Frame Bracket w/ Insert - FTBD

8700-AE 10210 Frame Bracket w/ Insert - TB13

8700-AF 10211 Frame Bracket w/ Insert - E350 - 2.0", 10.50" Center Bar to Bracket End - 2209ST

8700-AI 10212 Frame Bracket w/ Insert - E350 - 2.0", 8.75" Center Bar to Bracket End (cutoff) - 2209ST

8700-AJ 10213 Frame Bracket w/ Insert - UBFR8705 - 2453ST

8700-AK 10214 Frame Bracket w/ Insert - UBFL8705 - 2453ST

8700-AL 10215 Frame Bracket w/ Insert - UBFHD35R - 2208ST

8700-AM 10216 Frame Bracket w/ Insert - UBFHD35L - 2208ST

8700-AH 10217 Frame Bracket w/ Insert - SBC450 - 2.0"

8705-AA 10218 Frame Bracket w/ Insert - 1576ST

8705-AAB 10219 Frame Bracket w/ Insert - 1576ST

8705-AB 10220 Frame Bracket w/ Insert - 2577ST



8705-AC 10221 Frame Bracket w/ Insert - 3002ST - Street-side

8705-ACB 10222 Frame Bracket w/ Insert - 3002ST - Street-side

8705-AD 10223 Frame Bracket w/ Insert - 3002ST - Curbside

8705-ADB 13012 Frame Bracket w/ Insert - 3002ST - Curbside

8735-AI 10224 Frame Bracket - 5159ST - Curbside

8735-AJ 10226 Frame Bracket - 5158ST - Street-side

8750-AC 10227 Frame Bracket w/ Insert - LGMTBF

8750-AD 10228 Frame Bracket w/ Insert - NSTB - 2507ST

8750-AE 10229 Frame Bracket w/ Insert - SBC450 - 2.5"

8750-AH 10230 Frame Bracket w/ Insert & Gr.8 Clamp Bolts - TBC1/TBC2/TBC3

8750-AK 10231 Frame Bracket w/ Insert - 2575ST

8750-AKB 10232 Frame Bracket w/ Insert - 3864ST

8750-AL 12978 Frame Bracket - 2574ST

8750-ALB 12962 Frame Bracket - 2574ST

8750-AN 10235 Frame Bracket w/ Insert - 2579ST

8750-ANB 10236 Frame Bracket w/ Insert - 2579ST

8750-AO 10237 Frame Bracket w/ Insert - 2576ST

8750-AP 10238 Frame Bracket w/ Insert - 2578ST

8750-APB 10239 Frame Bracket w/ Insert - 2578ST

8750-AS 10240 Frame Bracket w/ Insert - 2843ST

8750-ASB 10241 Frame Bracket w/ Insert - 3868ST

8750-AT 10242 Frame Bracket w/ Insert - 3500ST

8750-ATB 10243 Frame Bracket w/ Insert - 3500ST

8750-AU 10244 Frame Bracket w/ Insert - 3772ST

8750-AV 10245 Frame Bracket w/ Insert - E350 - 2.5", 8.75" Center Bar to Bracket End (cutoff) - 2209ST

8750-AW 10246 Frame Bracket w/ Insert - 4509ST

8750-AX 13013 Frame Bracket w/ Insert - 4617ST

8750-BQ 12956 Frame Bracket w/ Insert - 4855ST

8750-BS 12825 Frame Bracket w/ Insert - 5061ST

8750-BU 13275 Frame Bracket - 5065ST

15160 Frame Bracket w/ Insert - 5579ST

15733 Frame Bracket w/ Insert - 5936ST

8700-10 10247 Driver Sleeve

RSD-80107D 10248 Drill Bit - 1.109" w/ 3" Flute - .50" Shank

RQS-38560K 10249 Reamer - Preset at 1.135" - .50" Shank

Torsion Bar Installation Instructions Model: 8755-C4

Rev. 03/2014 Page 1 of 1

1. Remove spring set U-bolt nuts and install Sauber attachment bracket over existing axle bracket. Longer U-bolts may be re-

quired and are generally available through a local spring shop. Torsion bar weldment should be directed towards chassis rear. To this point lock nuts should be loose around the urethane bushings at each end of the arm and at the cross-tube.

2. Torque spring set U-bolts. 3. Position square cross-tube at underside of frame with toggle links close to vertical. Maximum toggle link deflection is 12 de-

grees either side of vertical. 4. Install frame clamps using fasteners provided. Clamp is notched to allow installation if crossmember frame reinforcement is

present. Torque frame clamp nuts. 5. Torque lock nuts at spring anchor brackets, toggle links and cross-tube.

Torsion Bar Installation Instructions Model: 8755-NE

Rev. 03/2014 Page 1 of 1

1. Remove spring set U-bolt nuts and install Sauber anchor bracket over existing axle bracket. Longer U-bolts may

be required and are generally available through a local spring shop. Torsion bar should be directed towards

chassis front. Note that the four long spacers mount with the Street-side anchor bracket and the four short spac-

ers mount with the curbside anchor bracket. To this point, lock nuts should be loose around the toggle link ure-

thane bushings.

2. Remove and discard the front spring set hanger bolt, saving the nuts for re-use later. With the frame bracket ad-

justment bolts loose, install the frame brackets using the provided bolts and existing nuts and washers. Complete

this operation one side at time, taking care to ensure the spring set's stability relative to the chassis frame. (A

temporary spacer may be used between the bottom of the frame and the top of the spring set for this purpose).

3. Make sure the arm/bar weldment is centered on the chassis and that both toggle links are vertical when viewed

from the front of the chassis.

4. Torque spring set U-bolts and front spring set hanger bolts.

5. Torque frame bracket adjustment bolts.

6. Torque lock nuts at toggle links

Torsion Bar Installation Instructions Models: 8700-F2B, 8700-F5B, 8700-F8, 8750-F4B, 8750-F5B & 8750-F7

Rev. 04/2017 Page 1 of 1

1. All except 8700-F5B: Loosen spring set U-bolts, remove and discard original cap, and replace with Sauber spring anchor

bracket. To this point lock nuts should be loose around the toggle link urethane bushings.

8700-F5B: Remove the spring set U-bolt nuts and install Sauber anchor bracket over existing axle bracket. Reinstall the

spring set U-bolt nuts.

2. Torque spring set U-bolts.

3. Remove the top two rivets from front factory spring overload bracket. Drill out the factory bracket and frame to 17/32". Tem-

porarily install (2) 1/2" bolts in these holes. Remove the bottom two rivets from the factory spring overload bracket and drill out

the bracket and frame to 17/32". Position bronze frame mounting bracket over factory overload bracket and install (4) bolts

per bracket using flat washers between frame mounting bracket and bolt head and between frame and lock nuts. Torque

frame mounting bracket nuts.

4. Torque bearing cap fasteners.

5. Torque lock nuts at toggle links.

Torsion Bar Installation Instructions Models: 8755-F6B, 8755-F9, 8755-N3B & 8755-N6B

Rev. 03/2014 Page 1 of 1

1. Remove the nuts from the spring set U-bolts, saving them for re-use later. Install axle anchor brackets under the leaf springs

and in front of the axle using the existing U-bolts, nuts and washers.

2. Remove and discard front spring set pinch bolts, saving the nuts for re-use later. Install frame brackets using existing bolts un-

less new ones are provided and existing nuts and washers.

3. Torque spring set U-bolts and front spring set pinch bolts.


Torsion Bar Installation Instructions Models: 8750-C2B, 8750-C3B, 8750-B & 8750-L1B

Rev. 03/2014 Page 1 of 1

1. Loosen spring set U-bolts, remove and discard original cap, and replace with Sauber spring anchor bracket. To

this point lock nuts should be loose around the toggle link urethane bushings.


3. Position Sauber frame mounting brackets along top frame rail making sure the links are perpendicular to the

chassis frame. Fasten frame clamp bracket with (2) bolts each side using flat washers between castings and bolt

heads and lock nuts. On units with reinforced frames, a spacer may be required to bring the frame mounting

brackets to a position parallel with the bar.



Torsion Bar Installation Instructions Models: 8705-F2B, 8705-F9B, & 8705-FA

Rev. 03/2014 Page 1 of 1

1. Remove spring set U-bolt nuts and install Sauber anchor bracket over existing axle bracket. Longer U-bolts may

be required and are generally available through a local spring shop. Torsion bar should be directed towards

chassis rear. To this point lock nuts should be loose around the toggle link urethane bushings.

Model 8705-F9B 4WD: The existing stabilizer and curbside mounting bracket should be removed. Install provid-

ed pipe spacers as indicated on drawing between Sauber anchor bracket and existing axle bracket making sure

that the anchor bracket bar attachment point is installed toward the outside of the chassis. Use 2-1/8" spacers

with curbside bracket and 1-3/4" spacers with Street-side bracket.

Model 8705-F9B 2WD: The existing stabilizer and both the curbside and Street-side mounting brackets should be

removed. Install provided pipe spacers as indicated on drawing between Sauber anchor bracket and existing axle

bracket making sure that the anchor bracket bar attachment point is installed toward the outside of the chassis.

Use 1/2" spacers with curbside and Street-side brackets.


3. 8705-F2B & 8705-FA: Remove bolt from rear spring attachment bracket. Slide Sauber frame bracket under

spring attachment brackets and re-install bolt. Torque rear spring attachment bracket nut.

8705-F9B: Install Sauber frame bracket with (4) .50"-13 x 2" fasteners and lock nuts through existing holes in the

chassis frame web and flange, making sure that the toggle link attachment point is mounted toward the outside of

the chassis.

Torque lock nuts at spring anchor brackets, toggle links and frame mounting bracket.

Torsion Bar Installation Instructions Models: 8755-C2B, 8755-C5 & 8755-C7

Rev. 03/2014 Page 1 of 1

1. Remove factory provided rear stabilizer bar if present. Disconnect fastener set at spring attachment bracket

and leave bracket in place. Remove rear frame attachment bracket, bar and linkage.

2. Remove spring set U-bolt nuts and install Sauber attachment bracket over existing axle bracket. If shock ab-

sorbers are present, the included spacer plates are not required. On units without shock absorbers, install the

spacer plates between the existing axle clamp bracket and the Sauber attachment bracket. Longer U-bolts

may be required on some chassis and are generally available through a local spring shop. Torsion bar weld-

ment should be directed towards chassis rear. To this point lock nuts should be loose around the urethane

bushings at each end of the arm and at the cross-tube.

3. Torque spring set U-bolts. Ensure that manufacturer's spring anchor bracket has a flat profile. If not, the

chassis bracket must be machined flat prior to installation to avoid damage to the anchor bracket.

4. Position square cross-tube at underside of frame with toggle links close to vertical. Maximum toggle link de-

flection is 12 degrees either side of vertical.

5. Install frame clamps using fasteners provided. Clamp is notched to allow installation if crossmember frame

reinforcement is present. Torque frame clamp nuts.

6. Torque lock nuts at spring anchor brackets, toggle links and cross-tube

Torsion Bar Installation Instructions Models: 8755-F1B, 8755-F7B, 8755-L1B, 8755-L2B, & 8755-N5B

Rev. 03/2014 Page 1 of 1

1. Remove the nuts from the spring set U-bolts, saving them for re-use later. Install axle anchor brackets below the

leaf springs and in front of the axle using the existing U-bolts and nuts.

2. Remove and discard the front spring set hanger bolt, saving the nuts for re-use later. Install the frame brackets

using the provided bolts and existing nuts and washers, making sure the bracket offset is to the outside of the

chassis for Model 8755-F1B bars. For Model 8755-N5B bars, the rounded side of the frame bracket should be

mounted to the inside of the chassis. For Model 8755-L1B and 8755-L2B bars, the tapered side of the frame

bracket should be mounted to the inside of the chassis. Complete this operation one side at time, taking care to

ensure the spring set's stability relative to the chassis frame. (A temporary spacer may be used between the bot-

tom of the frame and the top of the spring set for this purpose).



Torsion Bar Installation Instructions Models: 8755-NA, 8755-ND, 8755-FB, 8755-FC, 8755-C3 & 8755-C6

Rev. 03/2014 Page 1 of 1

1. Remove the nuts from the spring set U-bolts, saving them for re-use later. Install axle anchor brackets below the

leaf springs and in front of the axle using the existing U-bolts and nuts.

2. Remove the front spring set hanger bolts, saving the bolts and nuts for re-use later. With the frame bracket ad-

justment bolts loose, install the frame brackets using the existing bolts and nuts without the washers. For Model

8755-FB, 8755-FC, 8755-NA and 8755-ND bars, the tapered side of the frame bracket should be mounted to the

inside of the chassis. For Model 8755-C3 and 8755-C6 bars, the round boss side of the frame bracket should be

mounted to the inside of the chassis. Complete this operation one side at time, taking care to ensure the spring

set's stability relative to the chassis frame. (A temporary spacer may be used between the bottom of the frame

and the top of the spring set for this purpose).


4. Torque frame bracket adjustment bolts.


Torsion Bar Installation Instructions Models: 8700-CB, 8700-C1B, 8700-C3B, 8700-C4B, 8700-C5B, 8700-C6B, 8750-CFB, 8750-C4, 8700-FB, 8700-F3B, 8700-F4B, 8700-F6B, 8700-F7, 8700-DB, 8700-D1B, 8750-NB, 8750-N1 & 8750-N2

Rev. 03/2014 Page 1 of 1

1. All except 8700-F6B: Loosen spring set U-bolts, remove and discard original cap, and replace with Sauber spring

anchor bracket. To this point lock nuts should be loose around the toggle link urethane bushings.

8700-F6B: Remove the spring set U-bolt nuts and install Sauber anchor bracket over existing axle bracket. Re-

install the spring set U-bolt nuts.


3. Frame mounting brackets on Models 8700-C1B, 8700-C2B, 8700-C3B, 8700-C5B, 8700-C6B, 8700-D1B, 8700-

F3B, 8700-F4B, 8700-F6B, 8700-F7, 8750-C4, 8750-N1 and 8750-N2 Torsion Bars mount on chassis frame in

the area between the chassis spring bracket and the axle. For all other bars, remove and discard chassis spring

overload brackets.

4. Install Sauber frame mounting brackets maintaining 1/4" clearance above the chassis frame. Position frame

mounting bracket with toggle links close to vertical. Maximum toggle link deflection is 12 degrees either side of

vertical.

5. Clamp frame mounting bracket while drilling holes from inside frame. Fasten with (4) bolts each side using flat

washers between casting and bolt head and between frame and lock nuts. Torque frame mounting bracket nuts.



Torsion Bar Installation Instructions Models: 8755-F8B, 8755-L3 & 8755-S1

Rev.03/2014 Page 1 of 1

1. Remove spring set U-bolt nuts and install Sauber attachment bracket over existing axle bracket.

Model 8755-F8B is provided with (4) loose spacers for each anchor bracket. Install (1) spacer at each U-bolt

location on units with no shock absorbers. For units with shock absorbers install (2) spacers at each of the

two forward U-bolt locations.

Model 8755-L3 requires (2) 1-3/4"L spacers and (1) 1/2"L spacer. One U-bolt location will not have a spacer.

Install spacers as shown in the installation drawing.

Model 8755-S1 requires curbside and Street-side specific anchor brackets. Attachment ears need to be off-

set toward outside of chassis.

Longer U-bolts may be required on some chassis and are generally available through a local spring shop.

Torsion bar weldment should be directed towards chassis rear. To this point lock nuts should be loose

around the urethane bushings at each end of the arm and at the cross-tube.






Torque lock nuts at spring anchor brackets, toggle links and cross-tube.

Torsion Bar Installation Instructions Models: 8755-B, 8755-N1B, 8755-N2B, 8755-N7B, 8755-N8B, 8755-NC, 8755-NH, 8755-F2B, 8755-F3B, 8755-F4B, & 8755-F5B

Rev. 03/2014 Page 1 of 2

1. Remove spring set U-bolt nuts and install Sauber attachment bracket over existing axle bracket. Longer U-bolts may be

required on some chassis and are generally available through a local spring shop. Torsion bar weldment should be di-

rected towards chassis rear. If the attachment bracket is equipped with two holes, one located at the bracket center and

one at the bracket end, it can be reversed to mount bar 5 1/2" forward if obstructions are encountered. If the bar weld-

ment must be mounted in the center hole, allow a minimum of .750" of clearance between the top of the arm and the cast-

ing bottom with the chassis unloaded. If this clearance is not available, contact Sauber Mfg. Co. for longer links for your

application. To this point lock nuts should be loose around the urethane bushings at each end of the arm and at the cross-

tube.

Notes: Model 8755-B cannot be installed on a Freightliner with air brakes.

2. Torque spring set U-bolts. Navistar series 4000 chassis do not have flat axle brackets. For these chassis install the

shims provided between the chassis axle bracket and the torsion bar anchor bracket to level each side. A 3/16" thick

spacer is required for 3/4" Dia. U-bolts and a 1/4" spacer is required for 7/8" Dia. U-bolts. Both are provided w/ part #

10073.

3. Position square cross-tube at underside of frame with toggle links close to vertical. Maximum toggle link deflection is 12

degrees either side of vertical.

4. Install frame clamps using fasteners provided. Clamp is notched to allow installation if crossmember frame reinforcement

is present. Torque frame clamp nuts.

Torque lock nuts at spring anchor brackets, toggle links and cross-tube.

Torsion Bar Installation Instructions - Spacer Detail Models: 8755-N1B, 8755-N2B, 8755-N7B, 8755-N8B, 8755-F2B, 8755-F3B, 8755-F4B & 8755-F5B

Rev. 03/2014 Page 2 of 2

Torsion Bar Installation Instructions Model: 8705-C4B

Rev. 03/2014 Page 1 of 1

1. Remove and discard factory installed stabilizer bar if present.

2. Drill out stabilizer bracket mounting holes to .656" and install anchor brackets with .625"-11 x 3" fasteners and

lock nuts.

3. Install frame mounting brackets to chassis front. Position frame mounting bracket with toggle links close to

vertical. Maximum toggle link deflection is 12 degrees either side of vertical.

4. Clamp frame mounting bracket while drilling holes from the outside of the tubular frame. Drill out the existing

frame hole to .75" and position the drill template on the outside of the frame with the "boss" seated into this

hole.

5. Drill .25" holes through the inside and outside walls of the frame and the clamped frame mounting bracket at

the (3) drill template locations. Remove the drill template and drill out only the (3) .250" holes through the

outside frame wall to .75". Drill out the (3) .25" holes through the inside frame wall and the frame mounting

bracket to .531".

6. Fasten the frame mounting bracket with (3) .50"-13 x 5.50" grade 8 bolts and (3) .75"OD x .50"ID x 3.688"L

spacers provided each side using flat washers between frame and bolt head and between casting and lock

nuts. Torque frame mounting bracket nuts.



Torsion Bar Installation Instructions Model: 8705-F4B

Rev. 03/2014 Page 1 of 1

1. Remove and discard factory installed stabilizer bracket if present.

2. Drill out curbside stabilizer bracket holes to .656" and install anchor bracket with .625" fasteners and spacers

provided.

3. Install Street-side anchor bracket with U-bolt provided.

4. Install frame mounting brackets to chassis front. Note that frame bracket castings have specific shapes that

match frame taper. Position frame mounting bracket with toggle links close to vertical. Maximum toggle link

deflection is 12 degrees either side of vertical.

5. Clamp frame mounting bracket while drilling holes from inside frame. Fasten with (3) .625" fasteners each

side using flat washers between casting and bolt head and between frame and lock nuts. Torque frame

mounting bracket nuts.



Torsion Bar Installation Instructions Model: 8755-N4B

Rev. 03/2014 Page 1 of 1

1. Remove and save the nuts from the forward facing, rear axle U-bolt and from the two pin-retainer bolts on the

U-bolt bracket. Discard only the U-bolt washers. Install axle anchor brackets onto the four-point mount using

the existing fasteners.

2. Remove and discard the lower spring hanger retainer bolts, saving the nuts for re-use later. Install frame

brackets using the provided bolts and existing nuts and washers.

3. Torque spring hanger bracket retainer bolts. Loosen nuts on rear facing U-bolts and re-torque all spring set

U-bolts to maintain level U-bolt bracket attitude.


Torsion Bar Installation Instructions Models: 8700-C, 8700-C1, 8700-C2, 8700-C3, 8700-C4, 8750-CF, 8700-F, 8700-F1, 8700-F3, 8700-F4, 8700-F6, 8700-D, 8700-D1 & 8750-N

Rev. 03/2014 Page 1 of 1

1. All except 8700-F6: Loosen spring set U-bolts, remove and discard original cap, and replace with Sauber

spring anchor bracket. To this point lock nuts should be loose around the toggle link rubber bushings.

8700-F6: Remove the spring set U-bolt nuts and install Sauber anchor bracket over existing axle bracket. Re-

install the spring set U-bolt nuts.


3. Frame mounting brackets on Models 8700-C1, 8700-C2, 8700-C3, 8700-D1, 8700-F3, 8700-F4 and 8700-F6

Torsion Bars mount between on chassis frame in the area between the chassis spring bracket and the axle.

For all other bars, remove and discard chassis spring overload brackets.



vertical.


washers between casting and bolt head and between frame and lock nuts. Torque frame mounting bracket

nuts.



Torsion Bar Installation Instructions Models: 8700-F2, 8700-F5, 8750-F4 & 8750-F5

Rev. 03/2014 Page 1 of 1

1. All except 8700-F5: Loosen spring set U-bolts, remove and discard original cap, and replace with Sauber

spring anchor bracket. To this point lock nuts should be loose around the toggle link rubber bushings.

8700-F5: Remove the spring set U-bolt nuts and install Sauber anchor bracket over existing axle bracket.

Reinstall the spring set U-bolt nuts.


3. Remove top two rivets from factory spring overload bracket. Drill out the factory bracket and frame to 17/32".

Temporarily install (2) 1/2" bolts in these holes. Remove the bottom two rivets from the factory spring over-

load bracket and drill out the bracket and frame to 17/32". Position bronze frame mounting bracket over fac-

tory overload bracket and install (4) bolts per bracket using flat washers between frame mounting bracket and

bolt head and between frame and lock nuts. Torque frame mounting bracket nuts.



Torsion Bar Installation Instructions Models: 8750-C2, 8750-C3, 8750 & 8750-L1

Rev. 03/2014 Page 1 of 1

1. Loosen spring set U-bolts, remove and discard original cap, and replace with Sauber spring anchor bracket.

To this point lock nuts should be loose around the toggle link rubber bushings.


3. Position Sauber frame mounting brackets along top frame rail making sure the links are perpendicular to the

chassis frame. Fasten frame clamp bracket with (2) bolts each side using flat washers between castings and

bolt heads and lock nuts. On units with reinforced frames, a spacer may be required to bring the frame

mounting brackets to a position parallel with the bar.



Torsion Bar Installation Instructions Model: 8735-F1

Rev. 03/2014 Page 1 of 1

1. Remove the existing stabilizer and both the curbside and Street-side mounting brackets.

2. Loosen spring set U-bolts and install the anchor brackets provided between axle and spring set with the

arm/bar weldment facing rearward of front axle, making sure that the studs and holes in the leaf springs, the

anchor bracket, and the axle line up and seat completely. Longer U-bolts may be required and are generally

available at a local spring shop. To this point lock nuts should be loose around the toggle link rubber bush-

ings.


4. Install Sauber frame mounting brackets by lining up holes in frame brackets with existing holes in chassis

frame rails. Toggle links should be very near vertical if correct holes are used. Fasten with (3) 1/2"-13 x 2"

long grade 8 bolts each side using flat washers between bracket and bolt head and between frame and lock


5. Torque lock nuts at spring anchor bracket and toggle links.

Torsion Bar Installation Instructions Models: 8705-C2, 8705-C3, 8755, 8755-N1, 8755-N2, 8755-N7, 8755-N8, 8755-F2, 8755-F3, 8755-F4, 8755-F5 & 8755-F8

Rev. 03/2014 Page 1 of 2

1. Remove spring set U-bolt nuts and install Sauber attachment bracket over existing axle bracket. Longer U-bolts may be

required on some chassis and are generally available through a local spring shop. Torsion bar weldment should be di-

rected towards chassis rear. If the attachment bracket is equipped with two holes, one located at the bracket center and

one at the bracket end, it can be reversed to mount bar 5 1/2" forward if obstructions are encountered. If the bar weld-

ment must be mounted in the center hole, allow a minimum of .750" of clearance between the top of the arm and the cast-

ing bottom with the chassis unloaded. If this clearance is not available, contact Sauber Mfg. Co. for longer links for your

application. To this point lock nuts should be loose around the rubber bushings at each end of the arm and at the cross-

tube.

Note: Model 8705-C2 & 8705-C3 cannot be installed on a chassis with rear tanks.

Note: Model 8755 cannot be installed on a Freightliner with air brakes.

2. Torque spring set U-bolts. Navistar series 4000 chassis do not have flat axle brackets. For these chassis install the

shims provided between the chassis axle bracket and the torsion bar anchor bracket to level each side. A 3/16" thick

spacer is required for 3/4" Dia. U-bolts and a 1/4" spacer is required for 7/8" Dia. U-bolts. Both are provided w/ part #

10073. Model 8755-F8 is provided with (4) loose spacers for each anchor bracket. Install (1) spacer at each U-bolt loca-

tion on units with no shock absorbers. For units with shock absorbers install (2) spacers at each of the two forward U-bolt

locations.

3. Position square cross-tube at underside of frame with toggle links close to vertical. Maximum toggle link deflection is 12

degrees either side of vertical.

4. Install frame clamps using fasteners provided. Clamp is notched to allow installation if crossmember frame reinforcement

is present. Torque frame clamp nuts.

5. Torque lock nuts at spring anchor brackets, toggle links and cross-tube.

Torsion Bar Installation Instructions - Spacer Detail Models: 8755-N1, 8755-N2, 8755-N7, 8755-N8, 8755-F2, 8755-F3, 8755-F4 & 8755-F5

Rev. 03/2014 Page 2 of 2

Torsion Bar Installation Instructions Model: 8755-N9

Rev. 03/2014 Page 1 of 1

1. Remove spring set U-bolt nuts and install Sauber anchor bracket over existing axle bracket. Longer U-bolts

may be required and are generally available through a local spring shop. Torsion bar should be directed to-

wards chassis front. To this point, lock nuts should be loose around the toggle link urethane bushings.


3. Remove front bumper and both front tow hooks. Install Sauber frame bracket with tow hooks on top of the

frame bracket using (8) 1/2"-13 Grade 8 bolts x 2-1/2" long through the existing tow hook mounting holes in

the frame.

4. Relocate front air brake valves (if necessary) to top side of OEM bracket to allow room for frame bracket

5. Torque lock nuts at anchor brackets, toggle links and frame mounting bracket

6. Replace front bumper.

Torsion Bar Installation Instructions Models: 8705-F2 & 8705-F9

Rev. 03/2014 Page 1 of 1

1. Remove spring set U-bolt nuts and install Sauber anchor bracket over existing axle bracket. Longer U-bolts

may be required and are generally available through a local spring shop. Torsion bar should be directed to-

wards chassis rear. To this point lock nuts should be loose around the toggle link rubber bushings.

Model 8705-F9 4WD: The existing stabilizer and curbside mounting bracket should be removed. Install pro-

vided pipe spacers as indicated on drawing between Sauber anchor bracket and existing axle bracket making

sure that the anchor bracket bar attachment point is installed toward the outside of the chassis. Use 2-1/8"

spacers with curbside bracket and 1-3/4" spacers with Street-side bracket.

Model 8705-F9 2WD: The existing stabilizer and both the curbside and Street-side mounting brackets should

be removed. Install provided pipe spacers as indicated on drawing between Sauber anchor bracket and ex-

isting axle bracket making sure that the anchor bracket bar attachment point is installed toward the outside of

the chassis. Use 1/2" spacers with curbside and Street-side brackets.


3. 8705-F2: Remove bolt from rear spring attachment bracket. Slide Sauber frame bracket under spring at-

tachment brackets and re-install bolt. Torque rear spring attachment bracket nut.

8705-F9: Install Sauber frame bracket with (4) .50"-13 x 2" fasteners and lock nuts through existing holes in

the chassis frame web and flange, making sure that the toggle link attachment point is mounted toward the

outside of the chassis.

4. Torque lock nuts at spring anchor brackets, toggle links and frame mounting bracket.


Rev. 03/2014 Page 1 of 1

1. Remove and discard factory installed stabilizer bar if present.

2. Drill out stabilizer bracket mounting holes to .656" and install anchor brackets with .625"-11 x 3" fasteners and

lock nuts.

3. Install frame mounting brackets to chassis front. Position frame mounting bracket with toggle links close to

vertical. Maximum toggle link deflection is 12 degrees either side of vertical.

4. Clamp frame mounting bracket while drilling holes from the outside of the tubular frame. Drill out the existing

frame hole to .75" and position the drill template on the outside of the frame with the "boss" seated into this

hole.

5. Drill .25" holes through the inside and outside walls of the frame and the clamped frame mounting bracket at

the (3) drill template locations. Remove the drill template and drill out only the (3) .250" holes through the

outside frame wall to .75". Drill out the (3) .25" holes through the inside frame wall and the frame mounting

bracket to .531".

6. Fasten the frame mounting bracket with (3) .50"-13 x 5.50" grade 8 bolts and (3) .75"OD x .50"ID x 3.688"L

spacers provided each side using flat washers between frame and bolt head and between casting and lock





Rev. 03/2014 Page 1 of 1

1. Remove and discard factory installed stabilizer bracket if present.

2. Drill out curbside stabilizer bracket holes to .656" and install anchor bracket with .625" fasteners and spacers

provided.

3. Install Street-side anchor bracket with U-bolt provided.

4. Install frame mounting brackets to chassis front. Note that frame bracket castings have specific shapes that

match frame taper. Position frame mounting bracket with toggle links close to vertical. Maximum toggle link

deflection is 12 degrees either side of vertical.

5. Clamp frame mounting bracket while drilling holes from inside frame. Fasten with (3) .625" fasteners each

side using flat washers between casting and bolt head and between frame and lock nuts. Torque frame

mounting bracket nuts.




Rev. 03/2014 Page 1 of 1

1. Remove factory provided rear stabilizer bar if present. Disconnect fastener set at spring attachment bracket

and leave bracket in place. Remove rear frame attachment bracket, bar and linkage.

2. Remove spring set U-bolt nuts and install Sauber attachment bracket over existing axle bracket. If shock ab-

sorbers are present, the beveled spacers are not required. On chassis without shock absorbers, install the

beveled spacers between the existing axle clamp bracket and the Sauber attachment bracket. Longer U-bolts

may be required on some chassis and are generally available through a local spring shop. Torsion bar weld-

ment should be directed towards chassis rear. To this point lock nuts should be loose around the rubber

bushings at each end of the arm and at the cross-tube.

3. Torque spring set U-bolts. Ensure that manufacturer's spring anchor bracket has a flat profile. If not, the

chassis bracket must be machined flat prior to installation to avoid damage to the anchor bracket.





6. Torque lock nuts at spring anchor brackets, toggle links and cross-tube.

Torsion Bar Installation Instructions Models: 8755-F1, 8755-F7, 8755-L1, 8755-L2 & 8755-N5

Rev. 03/2014 Page 1 of 1

1. Remove the nuts from the spring set U-bolts, saving them for re-use later. Install axle anchor brackets below

the leaf springs and in front of the axle using the existing U-bolts and nuts.

2. Remove and discard the front spring set hanger bolt, saving the nuts for re-use later. Install the frame brack-

ets using the provided bolts and existing nuts and washers, making sure the bracket offset is to the outside

of the chassis for Model 8755-F1 bars. For Model 8755-N5 bars, the rounded side of the frame bracket

should be mounted to the inside of the chassis. For Model 8755-L1 & 8755-L2 bars, the tapered side of the

frame bracket should be mounted to the inside of the chassis. Complete this operation one side at time, tak-

ing care to ensure the spring set's stability relative to the chassis frame. (A temporary spacer may be used

between the bottom of the frame and the top of the spring set for this purpose).



Torsion Bar Installation Instructions Models: 8755-F6, 8755-N3 & 8755-N6

Rev. 03/2014 Page 1 of 1

1. Remove the nuts from the spring set U-bolts, saving them for re-use later. Install axle anchor brackets under

the leaf springs and in front of the axle using the existing U-bolts, nuts and washers.

2. Remove and discard front spring set pinch bolts, saving the nuts for re-use later. Install frame brackets using

provided .50" bolts and existing nuts and washers.

3. Torque spring set U-bolts and front spring set pinch bolts.


Torsion Bar Installation Instructions Model: 8755-N4

Rev. 03/2014 Page 1 of 1

1. Remove and save the nuts from the forward facing, rear axle U-bolt and from the two pin-retainer bolts on the

U-bolt bracket. Discard only the U-bolt washers. Install axle anchor brackets onto the four-point mount using

the existing fasteners.

2. Remove and discard the lower spring hanger retainer bolts, saving the nuts for re-use later. Install frame

brackets using the provided bolts and existing nuts and washers.

3. Torque spring hanger bracket retainer bolts. Loosen nuts on rear facing U-bolts and re-torque all spring set

U-bolts to maintain level U-bolt bracket attitude.


Torsion Bar Installation Instructions Models: 8750-D1

Rev. 08/2014 Page 1 of 1


To this point lock nuts should be loose around the toggle link rubber bushings.


3. Frame mounting brackets mount between on chassis frame in the area between the chassis spring bracket

and the axle.



vertical.


washers between casting and bolt head and between frame and lock nuts. Torque frame mounting bracket

nuts.


7. Torque lock nuts at toggle links and anchor bracket to 100 ft-lbs.


Rev. 08/2014 Page 1 of 1


To this point lock nuts should be loose around the toggle link rubber bushings. Top end of leaf spring center-

ing bolt may need to be cut down to avoid interference with bottom side of Sauber spring anchor bracket.

2. Torque 3/4” Dia. meter spring set U-bolts to 175 ft-lbs or as directed by Ford.

3. Frame mounting brackets mount to chassis frame in the area between the rear chassis spring bracket and the

axle.

4. Install Sauber frame mounting brackets maintaining 1/4" clearance to the torsion bar above the chassis frame.

Position frame mounting bracket with toggle links close to vertical. Maximum toggle link deflection is 12 de-

grees either side of vertical.

5. Clamp frame mounting bracket while drilling holes through frame bracket and frame. Fasten with (4) 1/2”-13 x

2” grade 8 bolts each side using hardened flat washers between casting and bolt head and between frame

and grade C lock nuts. Torque frame mounting bracket nuts to 115 ft-lbs.

6. Torque bearing cap fasteners to 115 ft-lbs.



Rev. 04/2017 Page 1 of 1


To this point lock nuts should be loose around the toggle link rubber bushings. Top end of leaf spring center-

ing bolt may need to be cut down to avoid interference with bottom side of Sauber spring anchor bracket.

2. Torque 3/4” Dia. meter spring set U-bolts to 175 ft-lbs or as directed by Ford.

3. Frame mounting brackets mount to chassis frame in the area between the rear chassis spring bracket and the

axle.

4. Install Sauber frame mounting brackets maintaining 1/4" clearance to the torsion bar above the chassis frame.

Position frame mounting bracket with toggle links close to vertical. Maximum toggle link deflection is 12 de-

grees either side of vertical.

5. Clamp frame mounting bracket while drilling holes through frame bracket and frame. Fasten with (4) 1/2”-13 x

2” grade 8 bolts each side using hardened flat washers between casting and bolt head and between frame

and grade C lock nuts. Torque frame mounting bracket nuts to 115 ft-lbs.

6. Torque bearing cap fasteners to 115 ft-lbs.


specifiers & installers guide to torsion bar applications · a sauber torsion bar can eliminate...

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