Final Drive Assemblies

The basic parts of a rear drive axle assembly are the pinion gear, ring gear, differential case, axle housing, and

• transfer case
• clutch pressure plate
• rear drive axles and axle bearings
• synchronizers

The purpose of a differential pinion gear is to transfer power from the vehicle's drive axles to the differential ring gear

• True
• False

Which of the following actions is NOT a function of a rear drive axle assembly?

• Supporting the vehicle's rear axles, brake assemblies, suspension components, and chassis
• Providing a final gear reduction
• Securing the vehicle's fuel tank in its correct position
• Transferring torque through a 90 degree angle

A differential pinion and ring gearset undergoing the machining process of lapping means that the gear were ______ at the manufacturer's factory

• drilled with internal cooling passages
• meshed and spun together with abrasive compound on their teeth
• filed on the teeth surfaces and paired with a new complimentary gear
• all of the above

What is the rear axle ratio for a differential featuring a ring gear with 41 teeth and a pinion gear with 11 teeth?

• 4.10
• 2.97
• 3.31
• 3.73

An integral differential carrier bolts to the front of a longitudinally mounted engine on a rear-wheel-drive vehicle.

• True
• False

A differential prevents the problem of an axle breaking or of uneven and destructive tire wear by allowing each of the axle's drive wheels to turn at different speeds

• True
• False

Which of the following statements best describes a clutch pack for a limited-slip differential?

• A set of alternating friction discs (splined to the differential axle gears) and steel plates (locked into notches in the differential case)
• Friction-producing cone-shaped axle gears that are splined to the drive axles
• A complex gearset consisting of driving worm gears and driven worm wheels
• A set of powerful magnetic strips that surround the interior of an axle housing

Special bolts and nuts are used to secure a ______ onto the axle housing flange of a rear drive axle assembly so the drive axle does not slide out

• integral differential carrier
• torsion bar
• differential clutch piston
• axle retainer plate

Swing axles, or constant velocity (CV) axles, are installed on a differential that is rigidly mounted on a vehicle's frame or body

• True
• False