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Automotive Service Modern Auto Tech Study Guide Chapter 59 Pages 11311143 Drive Shafts & Transfer Cases 12 Points

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Page 1: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service Modern Auto Tech Study Guide Chapter 59 Pages 1131­1143 Drive Shafts & Transfer Cases 12 Points

Page 2: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service 1.  The term _____________________ generally refers to all of the parts that 

transfer power from a vehicle’s  transmission to its drive wheels. 

Drive Train Freight Train Passenger Train

Page 3: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service 2.  Front engine, rear wheel drive vehicles use a __________  __________ to 

transfer power from the transmission output shaft to the rear axle. 

Torque Tube Drive Shaft Axle Shaft

Page 4: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service 3.  A drive shaft has _____________________ joints at its ends to allow for 

driveline flex as the rear axlemoves up and down.  A FWD transaxle is equipped with half­shafts fit with either tripod or Rzeppa joints. 

National Global Universal

Page 5: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service 4.  A ________ yoke is used on a drive shaft to allow length changes as the rear 

axle moves up & down. 

Split Slick Slip

Page 6: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service 5.  The drive shaft or propeller shaft is usually a _______________ steel or 

aluminum tube with yokes the hold the universal joints at each end. A FWD half­shaft only spans about 1/2 the width of the vehicle. 

Hollow Solid Square

Page 7: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service 6.  The drive shaft spins ______________ than the wheels and tires and may 

need balance weights or a vibration damper because of its high speed. NOTE:  FWD half­shafts spin slower than RDW drive shafts. 

Faster Slower Exactly as Fast

Page 8: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service 7.  Universal joints are usually of the single, ________ ­and­_________ design. 

Cross & Roller Cross & Road Cross & Angry

Page 9: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service 8.  Double cross­and­roller joints, known as ______________________ velocity 

universal joints, are used to reduce torque fluctuations and torsional vibrations that develop on shafts operated at sharp angles. 

Continuous Constant Common

Page 10: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service 9.  Longer drivelines, like those used on pickup trucks, may use a two­piece drive 

shaft fit with a __________ support bearing that is hung from the frame cross members. 

Front Center Rear

Page 11: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service 10. The ___________  ________ driveline, with the exposed drive shaft and a rear 

axle assembly mounted on springs, is the most common driveline in use . 

Hotch Kiss Scotch Kiss Stolen Kiss

Page 12: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service 11. Four wheel drive vehicles use a ________________  ________ to send power 

to both the front and rear axle assemblies.  Two drive shafts run from one transfer case, one to the front & one to the rear  drive axle. 

Torque Case Transfer Case Crank Case

Page 13: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service 12.  _______ ­ ____________ drive does not use a conventional transfer case. 

More drive torque is sent to the rear wheels on an all­wheel drive system than to the front wheels through a fluid or viscous coupling. AWD systems sense the need for torque and change the percentage of application front­to­rear wheels automatically. 

Front Wheel Rear Wheel All Wheel

Page 14: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service

Page 15: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service

Page 16: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service

Page 17: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service

Page 18: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service

Page 19: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service

Page 20: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service

Page 21: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service

Page 22: Automotive Service - Grafton School District · Automotive Service 12. _____ _____ drive does not use a conventional transfer case. More drive torque is sent to the rear wheels on

Automotive Service