Automotive Service Modern Auto Tech Study Guide Chapter 59 Pages 11311143 Drive Shafts & Transfer Cases 12 Points
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
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
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
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
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
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
Automotive Service 7. Universal joints are usually of the single, ________ and_________ design.
Cross & Roller Cross & Road Cross & Angry
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
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
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
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
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
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