Chevrolet Silverado / GMC Sierra. Service manual — part 1432

Fig. 117: Identifying Driveshaft Pinion, Yoke Retainers & Bolts
Courtesy of GENERAL MOTORS CORP.

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

2. Reference mark the rear propeller shaft (3) to the rear axle pinion yoke (4).

3. Disconnect the propeller shaft from the axle.

Wrap the bearing caps with tape in order to prevent the loss of bearing rollers. Support the
propeller shaft as necessary.

2008 Chevrolet Silverado 1500

2008 Driveline/Axle Rear Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 118: Measuring Pinion Rotating Torque
Courtesy of GENERAL MOTORS CORP.

4. Using an inch-pound torque wrench, measure the amount of torque required to rotate the

pinion. Record this measurement for reassembly. This will give the combined preload for
the following components:

The pinion bearings

The pinion oil seal

The differential case bearings

The axle bearings

The axle seals

2008 Chevrolet Silverado 1500

2008 Driveline/Axle Rear Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 119: View Of Pinion Shaft & Pinion Yoke Alignment Marks
Courtesy of GENERAL MOTORS CORP.

5. Place an alignment mark between the pinion and the pinion yoke.

2008 Chevrolet Silverado 1500

2008 Driveline/Axle Rear Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 120: Holding Pinion Yoke With Special Tool
Courtesy of GENERAL MOTORS CORP.

6. Install the J 8614-01 as shown.

7. While holding the J 8614-01 , loosen the pinion nut.

8. Remove the washer.

2008 Chevrolet Silverado 1500

2008 Driveline/Axle Rear Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado