Chevrolet Silverado / GMC Sierra. Manual

2. Install the clutch shaft pilot bearing using the J 33842 . See Special Tools.

3. Install the clutch shaft to the differential carrier assembly.

4. Install the inner axle shaft and housing assembly. Refer to Front Drive Axle Inner Shaft

and Inner Shaft Housing Replacement (8.25 F4WD Axle) or Front Drive Axle Inner
Shaft and Inner Shaft Housing Replacement (8.25 S4WD and 9.25 Axles).

FRONT DRIVE AXLE INNER SHAFT SEAL AND INNER SHAFT BEARING REPLA
REPLACEMENT

Tools Required

J 8092 Universal Driver Handle - 3/4 in - 10

J 2619-01 Slide Hammer

J 29369-1 Bushing and Bearing Remover. See Special Tools.

J 29369-2 Bushing and Bearing Remover (2-3 inch). See Special Tools.

J 36609 Axle Tube Bearing Installer. See Special Tools.

J 45225 Axle Seal Installer. See Special Tools.

Removal Procedure

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

2. Drain the differential carrier assembly. Refer to Front Axle Lubricant Replacement.

3. Remove the right side seal and/or bearing by performing the following steps:

1. Remove the inner axle shaft and housing assembly from the differential carrier case

assembly. Refer to Front Drive Axle Inner Shaft and Inner Shaft Housing
Replacement (8.25 F4WD Axle) or Front Drive Axle Inner Shaft and Inner
Shaft Housing Replacement (8.25 S4WD and 9.25 Axles).

2. Remove the clutch fork assembly components and the inner axle shaft from the inner

axle shaft housing. Refer to Front Drive Axle Inner Shaft and Inner Shaft
Housing Replacement (8.25 F4WD Axle) or Front Drive Axle Inner Shaft and
Inner Shaft Housing Replacement (8.25 S4WD and 9.25 Axles).

3. Install the inner axle shaft housing into a vise.

Clamp only on the mounting flange of the inner axle shaft housing.

4. Install the J 29369-1 , 8. See Special Tools.25 inch axle, or the J 29369-2 , 9. See

Special Tools.25 inch axle, behind the inner axle shaft seal or the inner axle shaft
bearing as necessary.

2008 Chevrolet Silverado 1500

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

Fig. 77: Inner Axle Shaft Seal And/Or The Inner Axle Shaft Bearing & J 29369-
2 & J 2619-01
Courtesy of GENERAL MOTORS CORP.

5. Install the J 2619-01 (2) to the J 29369-1 or the J 29369-2 (1). See Special Tools.

6. Remove the inner axle shaft seal and/or the inner axle shaft bearing using the J 2619-

01 .

2008 Chevrolet Silverado 1500

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

Fig. 78: Identifying Inner Axle Shaft - Front Drive Axle
Courtesy of GENERAL MOTORS CORP.

4. If only replacing the left side seal, perform the following steps:

1. Place an alignment mark between the inner axle shaft and the wheel drive shaft.

2. If servicing the 8.25 inch axle, remove the shock module. Refer to Shock Absorber

and Spring Assembly Replacement .

3. Disconnect the wheel drive shaft from the inner axle shaft.

4. Remove the inner axle shaft using a hammer and a brass drift.

IMPORTANT: Support the wheel drive shaft in order to not over flex the CV

joint.

2008 Chevrolet Silverado 1500

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

5. Remove the inner axle shaft seal using a suitable seal remover tool.

Fig. 79: Inner Axle Shaft Seal/Bearing & J 29369-2 & J 2619-01 - Front Drive Axle
Courtesy of GENERAL MOTORS CORP.

5. If replacing both the left side seal and bearing, perform the following steps:

1. Remove the differential carrier assembly. Refer to Differential Carrier Assembly

Replacement (1500 FWD) or Differential Carrier Assembly Replacement (2500
4WD).

2. Place the differential carrier assembly into a vise.

Clamp only on the mounting flange of the differential carrier assembly case.

2008 Chevrolet Silverado 1500

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

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Chevrolet Silverado / GMC Sierra. Manual - part 1341