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Professional Grade Bolt-On Drag-Race Strut Clip Fits ‘67-69 Camaro and ‘68-72 Nova
Absolutely the finest no-compromise product available for serious racers
Features• Lightweight4130tubular
design• Double-adjustablestrut
valvinginsingle-bodyorpiggybackreservoirversions
• Completebolt-oninstallation
• 6”-travelbilletVariStruts• Extended-travelbillet
rackandpinionprovidessharperturningradius
• Optionalbumper/core-supportmounts
Ride-height/chassis-preloadadjustment
Double-adjustablestruts
Quick-releaserackmountsfacilitateengineremoval
Extended-travelrackBumpsteeradjustersOptionalslotted
medium-dutybrakes
Lightspringratesformorestoredenergy(beneficialinrestricted-tire-sizeclasses)
Motorplatebrackets
Rackrotatestominimizeu-jointanglesandimproveexhaustandoil-pumpclearance
Bolt-On Drag-Race Camaro Strut ClipWecontinuetoraisethebarwithourextremelylightweight(144 lb.)directbolt-ondragracestrutsuspensionsystemfor‘67-’69Camarosand’68-72Novas.Clipsarefactory-welded1-5/8”4130tubing,withmountoptionsforsmall-block,big-block,andLS-seriesengines.Installationrequiresupperstrutcupsbeattachedtoexistingcagesides.Thedesignfeaturesspacefortall-deckengineswithlarge-diameterheaders,easyengineremovalandcompletelyaccessibleoilpan.Systemincludestheframeclip,double-adjustablebilletVariStruts,tubularcontrolarmswith4130rodends,billet-aluminumdrag-racerackwithextended-travelforsharperturningradius,billetrackclamps,bumpsteeradjustabletie-rodends,andcompletedisc-brakesetwithbillethubs,lightweightrotorsandaluminumcalipers.Manyadditionaloptionsalsoavailable(seebackpage).
Extremely Lightweight
System! BareClip(60lb.),
CompleteSystem(144lb.)
Spindle-orhub-mountbrakes
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Factory-weldedclipassembly.(Upperstruttubesattachedduringinstallation.)
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Strut Clip Welded AssemblyState-of-the-artengineeringworkstationswithPro/ENGINEERsoftwarewereusedtodesignthestrutfront-clipweldedassembly.Finiteelementanalysis(FEA)aidedinfinalizinganefficientdesign,strongenoughtoexceedthedemandsoftoday’shigh-horsepowerOUTLAWdrag-racecarswithoutaddingunnecessarymaterialtoremainalightweightassembly.
Theclipisconstructedentirelyfrom4130chrome-molysteel,includingthemainstructuraltubes,mountingbrackets,strutmounts,andbilletstrut-adjusterbosses.Clipsareshippedasabare-steelfactory-weldedassembly,ensuringperfectgeometryandeliminatingtheneedtoweldmultiplepiecesormakecomplicatedmeasurementswhileinstallingthesystem.Thelowerportionoftheclipfeaturesdualtubestiedtogetherwithverticalsupportsforaddedstrengthalongthedrivetrainpathanddirectlyaboveeachlowercontrolarmmount.Thisstructurealsohastheaddedbenefitoflargerweldcontactareasandbroaderfootprintsatthe
lowerfirewallmounts.Asingle-piecebottomtubeservesasaseamlesscrossmember,leavingtheengineveryaccessibleandavoidingunnecessaryweldedjoints.Rackandpinionbracketsaremountedtothecrossmemberforwardoftheclip’suprighttubesandallowtheracktobesimplymovedoutofthewayduringengineremovalwithoutdisturbingthealignmentsettings.Allstructuralbracingispurposefullyplacedbetweenthefirewallandcrossmembertoeliminateunnecessaryweightforwardofthesuspensionandsteering.Onlythecentertubeextendsforwardandcanbeequippedwithanoptionalbracketthatenablesbolt-oninstallationofthefactorybumpermountsandradiatorcoresupport.Struthoopsfeaturemultiplebendstoaccommodatetheupperstrutmountandmotor-platebracketsandcontinuingdownwardtotiedirectlyintothetwolowerstructuraltubes.Anadditionalforwardsupportstrutmustbeaddedbythebuilder,connectingthetopstrutmountcupandrollcage.Themotor-platebracketsaremountedalongthemostuprightportionofthecliptoprovidethegreateststrengthandstabilityfortheengine.Afoldedgussetcapturesthetubeandalsoprovidesabottomstopshouldtheenginefallbelowthecorrectalignmentlevelduringinstallation.
Optional Bumper/Core Support BracketReusingthefactoryfront-bumpermountsorradiatorcoresupporthasbeenturnedintoasimplebolt-oninstallation.Chassisworksistheonlymanufacturertoengineersuchacomplex,yetcosteffective,time-savingsolution.Theboxedportionofthebracketismadefrom
asingle-pieceof4130steelplatethatislaser-cut,foldedbyCNCbender,andfinallyweldedalongitsseams.Thecoresupporttabutilizesourslot/tabassemblymethodtoensureitisperfectlypositionedbeforebeingweldedtotheboxedportion.
Motor-platebracketwithwrap-aroundgusset.
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Factory-weldedmotor-platemountingtabsmakeinstallationofourprofile-milledaluminummotorplatesplateseasyandextremelyclean.Small-blockChevy
motorplatesareadirectfit,butbig-blockandLSChevyplatesrequirebilletadapters.MidplatesboltsdirectlytothefactorylowerframemountsusingspecialadapterbracketsandfitsV8,LSandothersimilarbellhousings.
Removablechassisbracewithtransmissionmount;meetsSFIcertificationrequirements.
Rack-and-Pinion Billet MountsTofacilitaterack-and-pinioninstallationandremovalforeasierenginemaintenance,lightweightbilletaluminummountingbracketsareused.OuruniqueclampinginstallationmethodandshortpinionshaftmovethelowerU-jointfartherbelowtheexhaustandenabletheracktoberotatedwithinitsmountstoadjuststeering-shaftclearanceanduniversal-jointangles.Mountbasesandouterclampsseatintomatinggroovesatthewidestportionoftherackbody,formingabroad,deflectionfreemountassemblythatcompletelypreventstherackfromshifting.Mountsetsaresilver-anodizedsatinfinishedandincludenecessaryhardware.
LSMotorPlateA/C
BBMotorPlateAdapter
Motor- and Mid-Plates
SFI-Spec Removable Chassis Brace
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Ourallnewdrag-racebilletrackcurestheannoyanceofinadequateturningradiuswhenmaneuveringaroundthepitsbyincreasingracktravelto6-5/8”.Theadditionaltraveldoesnotdisruptthehigh-speedstabilityofthestrut’sslowersteeringgeometrycreatedbylengtheningthesteeringarmsbutsimplyallowsyoutoturnthestrutatsharperangleswhenneeded.Therack-and-pinionmainbodyismadeupofthree
Unique Sculpted Gear BoxAsculpted-surfacegearboxshapewasdevelopedthroughtheuseoffiniteelementanalysis(FEA)softwaretoeliminatefatiguepoints,minimizegearboxdeflection,andprovideanattractivemodernizedappearance.Duetothecomplexityinengineeringandmachiningthiscomponent,mostmanufacturersarelimitedtoinferiorcastorsimplegeometricdesigns.Toattachtheprotectiverubberbootsateachendoftherackassembly,externalgroovesarepresentforslip-proofinstallationandeasyreplacementifevernecessary.
Internal ComponentsThehelical-cutpiniongearandrackshaftaresupportedbyacombinationoflow-friction,polymerbushingsandrollerbearingsforsmoothgearengagementandextendedservicelife.Aspring-loadedgear-lashmechanismenablespreciseandpredictable“zero-play”steeringwithnoneedforfutureadjustment.Tie-rodsarescreweddirectlyintotherackgearandlockedusingcrushtabstopreventloosening.Duringfinalassemblyallinternalcomponentsarethoroughlylubricatedandtherackcompletelysealedtopreventcontaminantsfromentering.Toreducewear,internalstopspreventunnecessarilyloadingthetie-rodpivots.
Bumpsteer Tie-Rod SetsChassisworks’bumpsteerkitutilizesahigh-strength,4130-bodyrodend,3/8”Grade8bolt,alongwithaselectionofshimstoenableverticaladjustmentoftheouterpivotpointatthesteeringarm.Thisletsyoucorrectunwantedtoe-inchangesduringsuspensiontraveltomaintainsteeringpredictability.
ProtectiveDustBoot
Stainless-SteelRetainingStraps
BilletAluminumRackBody
PolishedStainlessCenterTube
ThreadedO-ringedJoints
SculptedAluminumGearBox
Dual-LayerDebrisBarrier ClampMount
SeatArea
componentsthreadedtogetheratO-ring–sealedjointstocreatearigid,lightweightstructure.Asturdy,polished,stainless-steelcentertubeconnectsthegearboxtotheouterbodyandfeaturesasmallerdiameterforadditionalharmonic-balancerclearance.Thegearboxandopposite-endrackbodyareCNC-machinedfromaluminumtoincreasewallthicknessforaddedstrengthdirectlyundertherackmountingclampswithoutexcessiveweight.
Drag-Race Billet Rack and Pinion
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Spindle-Mount Brakes E• Caliper:Billetaluminum,single-piston,floating
caliper(blackanodized)
• Rotor:10.25x.25”,solid(slottedrotorstandard)
• Hat:Billetaluminum,silver-anodizedfinish
• Fits:WeldRacingWheels-Alumastar2.0(788-15001)andMagnumPro(786-15001or786P-15001)andAmericanRacingWheels-TorqThrust®Pro(48553S)andTrakStar(48053SBCor48053S)
Standardbrakeoptionsincludebilletaluminumsingle-pistonfloatingcaliperswith10-1/4”rotorsforspindle-mountedwheelsordual-pistonfixedcaliperswith10”rotorsforhub-mountedwheels.Afour-pistonforged-aluminumcaliperwith11-3/4”rotoroptionisalsoavailableforheaviervehicles.Slottedrotorsfurtherreduceweight.
F Medium-Duty Brakes• Caliper:Forgedaluminum,four-piston,
fixedcaliper(blackanodizedoroptionalpolishedfinish)
• Rotor:11.75x.35”,slotted
• Hub:Billetaluminum,silver-anodizedfinish,4-1/2”and4-3/4”5-lugpatterns
Light-Duty Brakes E• Caliper:Billetaluminum,
dual-piston,fixedcaliper(blackanodized)
• Rotor:10.00x.35”,slotted
• Hub:Billetaluminum,silver-anodizedfinish,4-1/2”and4-3/4”5-lugpatterns
Brake Options
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TotakefulladvantageofChassisworks’advancedmanufacturingcapabilities,acompletecustombolt-onstrutwasdevelopedbyoursistercompany,VariShock.Installedheight,travel,valvingrangeandmountingconfigurationarebuilttoourexactspecifications,whereasothermanufacturesareforcedtocompromisewith“off-the-shelf”products.BilletVariStrutsfeaturedouble-adjustablevalving,anadjustable-heightspherical-bearingtopmount,and6”ofsuspensiontravel;idealforrestrictedtire-sizeracingclasses.Thedual16-positionvalve-adjustmentknobsallowyoutopreciselytunetherateofweighttransferatlaunchandhowthechassissettlesdowntrack.
Billet VariStruts
Adjustable-Height Stem MountThebilletVariStrutusesChassisworks’exclusivethreadedspherical-bearingtopmount,addingameanstofinetunerideheight,chassispreloadandbalancewithoutsacrificingavailablesuspensiontravel.Billetaluminumbearinghousingadjustersfeaturehigh-load-capacitythreadswithmultipleball-lockgrooves,allowingpreciseincrementaladjustment.Ahexadjustmentwrenchisincluded.
Double-Adjustable 16-position KnobsVariShock’sQuickSet2double-adjustablevalvemechanismenablesindependentbumpandreboundadjustmentfortheultimateintuningvehiclelaunchcharacteristics.Simplybyrotatingtwofullyaccessible16-positionknobs256differentsettingsareattainable.Adjustmentsaremadeinsecondswithouttoolsortheneedtoremoveorunboltthestrut.Eachknobislaser-etchedwithdirectionalarrowsand“plus/minus”symbolstoclearlyindicatewhichdirectionachievesthedesiredadjustment.Additionalarrowsetchedintothestrut’sbaserevealwhichknobsetsbump,andwhichsetsrebound.
High-Rebound - Piggyback ReservoirVariShock’spiggyback-style,6”travel,dragracestrutachievessignificantlyhigherreboundforcesthanoursingle-bodystrutsthroughuseofacompletelynewvalvesystem.Thecombinationoffinercontrolathigherpressureswithincreasedfluidvolumegreatlyimprovesthestrutsabilitytocontrolthefrontend’sreactionduringlaunches.Thisisahighlyrecommendedupgradeforextremehorsepower,small-tirevehiclescompetingatthetoprankofprofessionallevels.
Lower Control ArmThetubularlowercontrolarmassemblyfeaturessphericalbearingsateachpivotpointtoprovidefreemovement,adjustablealignment,andsimplecomponentreplacement.Each4130tubeisfittedwithathreadedbillettubeadapteratoneendandaspecialmaletaborbearinghousingclevisattheoppositeend.Chrome-moly(4130)bodyrodendsincluded.
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Locking Lower Spring SeatAnew-design,one-piecelowerspringseatdoesnotrequirealocknut;it’slockedinplacebytwoballlocksthatpressintothegroovesonthereservoirbodyandeasilyunlockwithanAllenwrenchforadjustment.
Revolutionary Strut BodyOurbilletalloy-steelstrutbodyfeaturesanintegratedspindleasopposedtoapress-inspindlecomponent.Thisexclusivemanufacturingmethodfreesupvaluablespaceandallowsthereservoirtobemoveddownward,behindthespindle.Withinthespindlebaseisarevolutionaryadjustmentmechanismthatispackagedtighterthananypreviousdesign.Thenetresultis6”ofsuspensiontravelwithoutincreasingtheoverallheightofthestrut.“DeflectiveDiskValving”isusedtoeliminatespringfatigue.Pistonrodsaremadefrom7/8”centerlessgroundhardchromesteelforwearresistanceandlongservicelife.
High Travel VariSpringsThenewVariSpringlineofspringswasdesignedtocomplementtheVariShockfamily.Onceagainweusedhighertechnologytoresolveapplicationlimitations.Thesespringsaremanufacturedusinganewhightensilewire,whichisstrongerthanthechrome-siliconwireusedbyothermanufacturers.Thisallowsthespringsto“setsolid.”Thespringscancompressuntilthecoilstouchwithoutdamagingthespringorcausingittotakeaset,whichultimatelychangestherideheight.Sincethiswirecanflexmorethanconventionalchrome-siliconwire,thesespringshavegreatertravelthanourcompetitors’springsofthesamerate.Thesespringswillallowyourshockstotraveltheirfullrangeofmotionwithoutgoingsolid.Thisgivesyougreatertractionandcontrolatfullbump,andadditionalsuspensiontraveltoworkwith.Ifyouarereadytotakeadvantageofhighertechnologywithgreatertravel,lighter,strongersprings,thenstepuptoVariSprings.
Coil-Spring Rate BaselineFront Vehicle Weight (lb)
Rate (lb/in)
SpringTravel (in)
Part Number
675-775 80 8.63 VAS21-12080
775-900 95 8.28 VAS21-12095
900-1025 110 7.91 VAS21-12110
1025-1175 130 8.43 VAS21-12130
1175-1350 150 7.61 VAS21-12150
1350-1500 175 7.60 VAS21-12175
1500-1825 200 7.45 VAS21-12200
1825-2200 250 7.00 VAS21-12250
2200-2600 300 7.07 VAS21-12300
VariStrut AccessorySpanner WrenchAlsoavailableisanexclusivespannerwrench,incorpo-ratingfourtangs,whichwillnotslipoffthelowerspringseatbecauseitengagestheseatinfourplaces(notone,likecommonspanners).
Part Number Description
899-012-201 VariShock spanner wrench, zinc plated steel
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Chris Alston’s Chassisworks, Inc.8661 Younger Creek DriveSacramento, CA 95828
[email protected] www.cachassisworks.com
Order: 800-722-2269Tech: 916-388-0288Fax: 916-388-0295
All prices subject to change. Current pricing available at www.cachassisworks.com.
File: 7705_DS.indd Rev. 11/30/2016
Pricing and Options7705 StrutClip4130Bolt-On‘67-69Camaro
Includes:4130round-tubeframeclip,double-adjustablestruts,controlarmswith4130rodends,billetsatin-finishdrag-racerackwithbumpsteeradjustabletie-rodends,billetrackclamps,andcompletedisc-brakesetwithbillethubs,slottedrotors,andaluminumcalipers
FRAMEOPTIONS MotorPlateTabs,withoutBumperMounts
MotorPlateTabs,withBumperMounts
BRAKEOPTIONS SpindleMountBrakeforWeld&AmericanWheels
L/DDiscBrakeSlotted10”x.35”RotorsandBlackCalipers
M/DDiscBrakeSlotted11.75”x.35”RotorsandBlackCalipers
M/DDiscBrakeSlotted11.75”x.35”RotorsandPolishedCalipers
MOTOR-PLATEOPTIONS
Small-Block-ChevyMotorPlate
Big-Block-ChevyMotorPlatewithBilletAdapters
LS-SeriesMotorPlatewithBilletAdapters
MID-PLATEOPTIONS
SB/BBAutomaticSteelMidPlate
LSAutomaticSteelMidPlateandAdapters
TRANSMISSION CrossmemberandUrethaneMount
STRUTOPTIONS Double-Adjustable6”-TravelStrut
DoubleAdjustable6”-TravelStrutwithPiggybackReservoir(highreboundforce)
STEERINGCOLUMNOPTIONS
DragRaceColumnwith3-BoltStandardQuickReleaseHub
DragRaceColumnwith5-BoltGrantGTQuickReleaseHub
DragRaceColumnwith6-BoltMOMOQuickReleaseHub
DragRaceColumnwithBlankFlangeQuickReleaseHub