Deck 5: Front Drive Axles Servicing Front Drive Axles

Question 1

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

Answer 1

False

Question 2

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

Answer 2

False

Question 3

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

Answer 3

A

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

Many AWD vehicles are based on FWD platforms.

Question 6

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 7

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 8

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 9

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 10

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

Question 11

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

Question 12

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

Question 13

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 14

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

Question 15

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

Question 16

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

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

Question 17

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 18

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

Question 19

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 20

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

Question 21

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 22

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

Question 23

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

Question 24

What is the purpose of the CV joint?

Question 25

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

Question 26

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 27

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

Question 28

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

Question 29

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

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

Question 30

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 31

Name the different types of inboard and outboard CV joints.

Question 32

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

Question 33

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

Question 34

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

Question 35

The Rzeppa CV-joint contains ____ ball bearings.

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

Question 36

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

Question 37

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 38

What is torque steer? What causes it?

Question 39

What are Torque Steer Compensation (TSC) programs?

Question 40

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