Exam 40: Drive Axles and Differentials

A vehicle with a leaking extension housing seal is being diagnosed. Technician A says check for nicks and burrs on the driveshaft yoke. Technician B says a worn extension housing bushing could have caused the seal to fail. Who is correct?

Technician A uses an oxyacetylene torch to remove the axle bearing retaining ring. Technician B uses a steel cold chisel and hammer. Who is correct?

Which CV joint test should be performed to determine whether the CV joint boot needs to be serviced?

Limited-slip axles require a special friction modifier fluid, added to the gear oil.

Technician A says FWD axle shafts can be solid or tubular. Technician B says FWD axle shafts can be equal or unequal in length. Who is correct?

Before servicing the rear U-joint, slip joint, or center bearing on a two-piece drive shaft, ______.

What is meant by U-joint phasing?

Technician A says limited slip differential clutch packs are designed to slip slightly when the vehicle is turning. Technician B says pressure is kept on the clutch packs by either an S-shaped spring or coil springs. Who is correct?

What parts are included in a typical CV joint service kit?

Both CV joints on a half shaft used in an RWD vehicle with independent rear suspension may be of the fixed style.

Both CV joints on a half shaft used in an RWD vehicle with independent rear suspension may be of the plunging style.

A popping or clicking noise on turns indicates a failed ____________________ CV joint.

A(n) ____________________ CV joint is capable of providing an in-and-out movement to allow for changes in the suspension.

Technician A uses an impact wrench to tighten axle hub nuts. Technician B stakes the axle hub nuts after they are tightened to lock them in place. Who is correct?

CV joints are lubricated with ______.

A shudder or vibration only when accelerating is most likely caused by ______.

Full floating axle shafts are found on ______.

What is torque steer?

Plunge-type CV joints allow the length of the axle assembly to change as the wheel travels up and down.

Identify three symptoms of a failed U-joint.