Chevrolet Silverado / GMC Sierra. Manual — part 1338

4. Determine the clutch gear shim thickness. Refer to Inner Axle Shaft Shim

Adjustment.

5. The clutch gear shim (9)

6. The clutch sleeve (8)

7. The clutch fork assembly (11)

8. The clutch fork inner spring (10)

8. If servicing the 9.25 inch axle, apply sealant to the inner axle housing to differential carrier

sealing surface. Use the correct sealant. Refer to Sealers, Adhesives, and Lubricants.

9. If servicing the 8.25 inch axle, install the axle housing gasket on to the differential carrier.

Fig. 66: Identifying Inner Axle Shaft Housing Assembly - Front Drive Axle (8.25
S4WD and 9.25 Axles)
Courtesy of GENERAL MOTORS CORP.

10. Install the inner axle shaft housing assembly to the differential carrier assembly.

IMPORTANT: The following service procedure is for the 9.25 inch axle

ONLY. The 8.25 inch axle uses a gasket.

2008 Chevrolet Silverado 1500

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

Fig. 67: View Of Inner Axle Shaft Housing Bolts - Front Drive Axle (8.25 S4WD and
9.25 Axles)
Courtesy of GENERAL MOTORS CORP.

11. If servicing the 8.25 inch axle, install the inner axle shaft housing bolts.

Tighten: Tighten the inner axle shaft housing bolts to 55 N.m (41 lb in).

12. If servicing the 9.25 inch axle, install the inner axle shaft housing bolts.

Tighten: Tighten the inner axle shaft housing bolts to 40 N.m (30 lb in).

2008 Chevrolet Silverado 1500

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

Fig. 68: Front Axle Mounting Bracket - Front Drive Axle (8.25 S4WD and 9.25
Axles)
Courtesy of GENERAL MOTORS CORP.

13. For 25/35 series vehicles, perform the following steps in order to install the front axle

mounting bracket to the inner axle shaft housing:

1. Slide the front axle mounting bracket towards the frame.

2. Install the front axle mounting bracket studs into the inner shaft housing mounting

flange.

3. It may be necessary to push up on the front axle mounting bracket and/or pull down on

the inner axle housing in order to gain enough clearance to install the mounting bracket
studs into the inner shaft housing.

4. Install the front axle mounting bracket to frame nuts.

Tighten: Tighten the inner axle shaft housing mounting bracket to frame nuts to 90
N.m (67 lb ft).

2008 Chevrolet Silverado 1500

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