GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1999 🢒 Firebird 🢒 General Information 🢒 General Information 🢒 Shock Absorber Replacement

Removal Procedure

    Object Number: 181246 Size: MH
  1. Fold down the seatback frame.
  2. Remove the quarter trim panel. Refer to Cargo Area Side Trim Panel Replacement in Body and Accessories.
  3. Pull the folding carpet back.

    4. Notice: The rear axle must be supported before removing the nut in order to avoid possible damage to the break hose lines, the tie rod and the propeller shaft.

  4. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  5. Support the rear axle (8) with an adjustable lifting device.
  6. Remove the upper shock absorber nut (1).
  7. Remove the upper retainer (2) and the upper insulator (3).
  8. Remove the lower retainer and the lower insulator (5).
  9. Remove the lower shock absorber nut (7) from the rear axle (8).
  10. Remove the shock absorber (6).

Installation Procedure

    Object Number: 181246 Size: MH
  1. Position the shock absorber (6) to the rear axle (8).

    2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Install the lower shock absorber nut (7) to the rear axle.

    3. Tighten
    Tighten the nut (7) to 90 N·m (66 lb ft).

  3. Install the lower insulator (5) and the lower retainer to the shock absorber (6).
  4. Position the shock absorber (6) through the underbody pan (4) and seat the insulator.
  5. Install the upper insulator (3) and the upper retainer (2) to the shock absorber (6).

    6. Notice: Turning the shock absorber while tightening the nut could damage the shock absorber. In order to prevent damage, keep the shock absorber stationary while you tighten the nut.

  6. Hand start the upper shock absorber nut (1).

    7. Tighten
    Tighten the nut (1) to 17 N·m (13 lb ft).

  7. Remove the adjustable rear axle support.
  8. Lower the vehicle.
  9. Pull the folding carpet down into position.
  10. Install the quarter trim panel. Refer to Cargo Area Side Trim Panel Replacement in Body and Accessories.
  11. Fold the seatback frame into an upright position.