GM Service Manual Online
For 1990-2009 cars only

Important: It is not necessary to remove the rear axle assembly for overhaul of the rear axle components as this can be done in vehicle. If the rear axle housing is being replaced, the rear axle assembly should be removed from the vehicle and overhauled on the bench. If the rear axle housing is damaged, use the following procedure in order to remove and install the rear axle housing:

Disassembly Procedure

  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle
  2. Support rear axle with stands and/or hydraulic jack.
  3. Remove rear torque arm. Refer to Torque Arm Replacement
  4. Remove propeller shaft from vehicle. Refer to One-Piece Propeller Shaft Replacement or Two-Piece Propeller Shaft Replacement
  5. If the rear axle housing is being replaced, remove the rear axle assembly from the vehicle. Refer to Rear Axle Replacement
  6. Remove the rear axle cover and gasket from housing. Refer to Rear Axle Housing Cover and Gasket Replacement
  7. Remove the axle shafts. Refer to Axle Shaft Replacement
  8. Remove the differential case from housing. Refer to Differential Case Assembly
  9. Remove the differential drive pinion gear and bearing races from housing. Refer to Drive Pinion Installation
  10. Inspect all components for excessive wear and replace as necessary.