Chevrolet Silverado / GMC Sierra. Service manual — part 1334

11. Install the wheel drive shaft inboard flange to inner axle shaft bolts.

Tighten: Tighten the wheel drive shaft inboard flange to inner axle shaft bolts to 79 N.m
(58 lb ft).

12. Install the front shock absorber. Refer to Shock Absorber Replacement (2500 Series) .

13. With either replacement procedure, fill the differential carrier assembly with axle lubricant.

Use the correct fluid. Refer to Front Axle Lubricant Replacement.

14. Lower the vehicle.

FRONT DRIVE AXLE INNER SHAFT AND INNER SHAFT HOUSING REPLACEMENT (8.25 S4WD
S4WD AND 9.25 AXLES)

Removal Procedure

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

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

2008 Chevrolet Silverado 1500

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

Fig. 51: View Of Front Axle Actuator Electrical Connector
Courtesy of GENERAL MOTORS CORP.

3. Disconnect the actuator electrical connector.

4. If only replacing the right side inner shaft and/or housing, follow the steps below. If only

replacing the left side inner shaft, proceed to step 17.

2008 Chevrolet Silverado 1500

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

Fig. 52: Inner Axle Shaft Housing Wire Harness - Front Drive Axle (8.25 S4WD and
9.25 Axles)
Courtesy of GENERAL MOTORS CORP.

5. Disconnect the wire harness from the inner axle housing.

6. For vehicles equipped with the 8.25 inch axle, remove the front shock module. Refer to

Shock Absorber and Spring Assembly Replacement .

2008 Chevrolet Silverado 1500

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

Fig. 53: View Of Wheel Drive Shaft Inboard Flange Bolt - Front Drive Axle
Courtesy of GENERAL MOTORS CORP.

7. Remove the wheel drive shaft flange bolts.

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

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

constant velocity (CV) joint.

2008 Chevrolet Silverado 1500

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