GM Service Manual Online
For 1990-2009 cars only

Rear Axle Lubricant Replacement 8.0 Inch Axle

Removal Procedure

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Clean the area around the rear axle fill plug.
  3. Remove the rear axle fill plug.
  4. Remove the rear axle cover. Refer to Rear Axle Housing Cover and Gasket Replacement .
  5. Drain the lubricant into a suitable container.

Installation Procedure

  1. Install the rear axle cover. Refer to Rear Axle Housing Cover and Gasket Replacement .
  2. Fill the rear axle with axle lubricant. Use the proper fluid. Refer to Approximate Fluid Capacities and Adhesives, Fluids, Lubricants, and Sealers .
  3. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 392774  Size: SH
  4. Install the rear axle fill plug.
  5. Tighten
    Tighten the rear axle fill plug to 33 N·m (24 lb ft).

  6. Lower the vehicle.

Rear Axle Lubricant Replacement 8.6 Inch axle

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Clean the area around the rear axle fill plug.

  3. Object Number: 1689720  Size: SH
  4. Remove the rear axle fill plug.
  5. Remove the rear axle cover. Refer to Rear Axle Housing Cover and Gasket Replacement .
  6. Drain the lubricant into a suitable container.

Installation Procedure

  1. Install the rear axle cover. Refer to Rear Axle Housing Cover and Gasket Replacement .
  2. Fill the rear axle with axle lubricant. Use the proper fluid. Refer to Approximate Fluid Capacities and Adhesives, Fluids, Lubricants, and Sealers .
  3. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1689720  Size: SH
  4. Install the rear axle fill plug.
  5. Tighten
    Tighten the rear axle fill plug to 33 N·m (24 lb ft).

  6. Remove the support and lower the vehicle.