GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1998 🢒 Park Avenue 🢒 Suspension 🢒 Rear Suspension 🢒 Support Replacement

Removal Procedure

    Object Number: 293367 Size: SH
  1. Raise and support vehicle. Refer to Vehicle Lifting Caution in General Information.
  2. Remove the wheels and tires.
  3. Lower exhaust system.
  4. Remove the springs. Refer to Coil Spring Insulators Replacement .
  5. Remove the brake calipers and support. Refer to Brake Caliper Bracket Replacement in Disc Brakes.
  6. Disconnect the wheel speed sensor electrical connector from each wheel.

    7. Object Number: 106206 Size: SH
  7. Release the park brake cable from brake calipers.
  8. Loosen the parking brake cable (1) and then disconnect the cable at the rear suspension support assembly.

    9. Object Number: 293366 Size: SH
  9. Disconnect the electrical connectors from the support assembly.
  10. Remove the electronic level control electrical connector and vent hose.
  11. Disconnect the electronic level control link from the left and right control arm.
  12. Remove the electronic level control vent tube from the electronic level control compressor.
  13. Support the rear suspension support assembly with a transmission jack and securely support.

    14. Object Number: 105036 Size: SH
  14. Remove three bolts per side, securing the support brackets to the body of the vehicle.

    15. Object Number: 105035 Size: SH
  15. Remove the front two and rear two bolts securing the support assembly to the body.
  16. Lower transmission jack and remove the support assembly.

Installation Procedure

    Object Number: 105035 Size: SH
  1. Raise the support assembly with transmission jack in position.
  2. Install two rear and two front bolts at the mounts.

    3. Tighten

        • Tighten the front support assembly bolts to 191 N·m (141 lb ft).
        • Tighten the rear support assembly bolts 191 N·m (141 lb ft).

    Object Number: 105036 Size: SH
  3. Install the brackets at the forward support assembly mounts.

    4. Tighten
    Tighten bolts to 86 N·m (63 lb ft).


    Object Number: 293366 Size: SH
  4. Connect the electronic level control air tube to the electronic level control compressor.
  5. Connect the electronic level control electrical connector and vent tube.
  6. Connect the electrical connectors to the support assembly.
  7. Connect the electronic level control links to both control arms.

    8. Object Number: 106206 Size: SH
  8. Attach the parking brake cable at the support assembly.
  9. Install the parking brake cable (1) to the brake calipers.
  10. Install the brake calipers. Refer to Brake Caliper Bracket Replacement in Brakes.
  11. Install the springs. Refer to Coil Spring Insulators Replacement in Rear Suspension.
  12. Install the exhaust system. Refer to in Exhaust.
  13. Install the tires and wheels. Refer to Wheel Installation in Wheels and Tires.

    14. Tighten
    Tighten the wheel nuts to 140 N·m (100 lb ft).