Exam 40: Drive Axles and Differentials

Driveshaft speed variation is being discussed. Technician A says the speed variations at the transmission yoke end of the driveshaft are canceled out by the speed variations at the pinion flange end. Technician B says the operating angles at each end must be equal for the speed variations to cancel each other out. Who is correct?

Identify the three basic internal components within a fixed-style CV joint.

What is a slip yoke?

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

Fixed-tripod-type CV joints are being discussed. Technician A says the fixed tripod joint cannot be removed from the drive shaft or disassembled because of the way it is manufactured. Technician B says the fixed tripod joint has less angular capability than a Rzeppa-type joint. Who is correct?

A tripod-style CV joint is being discussed. Technician A says the outer housing is sometimes called a tulip. Technician B says the inner tripod is often called a spider. Who is correct?

The double-offset joint is used in applications that require higher operating angles and greater plunge depth.

The bearing cups of a conventional U-joint are retained by ______.

In a hypoid gearset, the drive pinion meshes with the ring gear at gear centerline.

Front-engine RWD luxury-type vehicles often use a double U-joint arrangement called a ______.

What is meant by U-joint phasing?

Describe the four distinct modes the vehicle should be operated in during a road test when diagnosing final drive problems.

In FWD applications, the outboard joint is a plunge joint.

Which of the following describes the double Cardan universal joint?

The differential pinion gears do not rotate on the pinion shaft when both driving wheels are turning at the same speed.

The CV joints nearest the transaxle are called the ______ joints.

An ___________________ is used to check the operating angle of the drive shaft.

Technician A says the outer CV joints of FWD axle shafts are less likely to need replacement than the inner joints. Technician B says a worn cage or race can cause a clicking sound during a turn. Who is correct?

If a noise is heard while driving straight but ceases on turns, what is the most likely cause?

What is the difference between a fixed CV-joint and a plunge type joint?