Chevrolet Silverado / GMC Sierra. Service manual — part 1409

REAR AXLE LUBRICANT LEVEL INSPECTION (10.5 INCH AXLE)

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

2. Make sure the vehicle is level.

3. Inspect the rear axle for leaks. Repair as necessary.

4. Clean the area around the rear axle fill plug.

Fig. 32: View Of Rear Axle Fill Plug
Courtesy of GENERAL MOTORS CORP.

5. Remove the rear axle fill plug.

6. Inspect the lubricant level.

Specification: The lubricant level should be between 0-10 mm (0-0.4 in) below the fill
plug opening.

2008 Chevrolet Silverado 1500

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

7. If the level is low, add lubricant until the level is even with the bottom edge of the fill plug

opening. Use the proper fluid. Refer to Fluid and Lubricant Recommendations .

8. Install the rear axle fill plug.

Tighten: Tighten the rear axle fill plug to 33 N.m (24 lb ft).

9. Lower the vehicle.

REAR AXLE LUBRICANT REPLACEMENT (8.6 INCH AXLE)

Removal Procedure

Fig. 33: View Of Rear Axle Fill Plug
Courtesy of GENERAL MOTORS CORP.

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

2. Remove the fill plug.

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

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

Fig. 34: View Of Rear Axle Cover & Bolts
Courtesy of GENERAL MOTORS CORP.

3. Remove the rear axle housing cover. Refer to Rear Axle Housing Cover and Gasket

Replacement.

Installation Procedure

2008 Chevrolet Silverado 1500

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

Fig. 35: View Of Rear Axle Cover & Bolts
Courtesy of GENERAL MOTORS CORP.

1. Install the rear axle housing cover. Refer to Rear Axle Housing Cover and Gasket

Replacement.

2. Fill the rear axle housing.

Use the proper fluid. Refer to Approximate Fluid Capacities .

For the correct capacity, refer to Fluid and Lubricant Recommendations .

2008 Chevrolet Silverado 1500

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