Deck 5: Front Drive Axles Servicing Front Drive Axles

Question 1

Most automobiles use a fixed inboard type of CV joint for front-wheel drive.

Answer 1

False

Question 2

Technician A says the protective boot on a CV-joint is made of bellows-type neoprene or silicone in some cases to protect against high temperature extremes. Technician B says the boots can be made from ordinary rubber. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Answer 2

A

Question 3

The drive axles are supported in the steering knuckle by roller bearings.

Answer 3

False

Question 4

Outer joints typically wear at a higher rate than inner joints because of the increased range of operating angles to which they are subjected.

Question 5

Unequal drive axles have been found to deliver more torque to the wheel with the longer shaft.

Question 6

The _____ assembly transmits torque from the engine and transmission to drive the vehicle's wheels.

A) drive axle
B) transaxle
C) front-axle
D) rear-axle

Question 7

Many AWD vehicles are based on FWD platforms.

Question 8

To combat the adverse effects of torque steer, manufacturers will limit the _____ of their engine to avoid severe torque steer.

A) weight
B) size
C) horsepower output
D) power input

Question 9

Technician A says the amount of torque steer a vehicle is dependent on the length of the axle shafts. Technician B says a factor that affects torque steer is the amount of power the engine produces. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 10

The two basic varieties of CV joints are the ball-type and the tripod-type joints.

Question 11

A _____ is used to transfer a uniform torque and a constant speed while operating through a wide range of angles.

A) U-joint
B) CV joint
C) synchromesh gear
D) drive shaft

Question 12

Technician A says the most commonly used type of CV-joint is the ball type. Technician B says it is the Rzeppa type. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 13

Improved _____ designs have allowed for a shorter spindle length and a smaller tire scrub, both key aids to controlling torque steer.

A) engine
B) shaft
C) transmission
D) strut

Question 14

Torque steer is more prominent on FWD vehicles with high-output engines.

Question 15

CV joints are called constant velocity joints because their rotational speed changes with the operational angle.

Question 16

Most vehicles have staggered alignment angles to compensate for road crown.

Question 17

CV-joints come in a variety of types which can be referred to by ____.

A) position, function, or design
B) function, design, or retaining method
C) design, function, or material
D) position, function, or retaining method

Question 18

Technician A says the inner race of the Rzeppa CV-joint is connected to the drive axle. Technician B says the ball bearings rotate on a trunnion within the outer housing. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 19

Rzeppa constant velocity joints are tripod-type CV joints and are usually the outer joints found on most FWD cards.

Question 20

What is one of the most important components of a FWD drive axle?

A) shaft
B) U-joint
C) CV joint
D) strut

Question 21

What are two commonly used boot clamps on a CV joint?

Question 22

What are Torque Steer Compensation (TSC) programs?

Question 23

Explain the "full-floating type" of drive axle used in transaxles.

Question 24

Like the Rzeppa CV joint, the ____ uses six balls in a cage and inner and outer races.

A) cross-groove CV joint
B) tripod CV joint
C) double-offset CV joint
D) countertrack CV joint

Question 25

What three methods are used to hold CV joints onto the axle shafts?

Question 26

What is the purpose of the CV joint?

Question 27

What is torque steer? What causes it?

Question 28

On an average, _____ outer joints are replaced for every inner joint replacement.

A) two
B) four
C) five
D) nine

Question 29

When a Rzeppa CV joint is modified to become a plunging joint by making the grooves in the inner race longer, it is called a _____.

A) cross groove CV joint
B) tripod CV joint
C) double-offset CV joint
D) countertrack CV joint

Question 30

The Rzeppa CV-joint contains ____ ball bearings.

A) 3 to 6
B) 6 to 10
C) 10 to 12
D) 13 to 15

Question 31

There are differences between front-wheel bearings on front-wheel drives and rear-wheel drives. Technician A says most front-wheel drive vehicles use one tapered roller bearing whereas rear-wheel drive vehicles use two. Technician B says most front-wheel drive vehicles use one-piece sealed bearing units. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Question 32

What are the functions of the boot installed over each CV joint?

Question 33

Explain the difference between a Rzeppa CV joint and tripod CV-joint.

Question 34

In the figure below of a tripod assembly, name the parts indicated by the arrows.

Question 35

In the typical FWD drive axle assembly figure shown, name the parts indicated by the arrows.

Question 36

Why is it important to consider the ABS (antilock brake system) when servicing a CV joint?

Question 37

What is the term used to describe a condition in which the car tends to steer or pull in one direction as engine power is applied to the drive wheels?

Question 38

In the figure of an exploded view of a typical CV joint shown, name the parts indicated by the arrows.

Question 39

In the typical FWD drive axle arrangement figure shown, name the parts that are indicated by the arrows.

Question 40

Name the different types of inboard and outboard CV joints.