GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 41013 Rotor/Drum Flange Resurfacing Kit
    • J 42450-A Wheel Hub/Flange Resurface Kit

Removal Procedure

Caution: Refer to Brake Dust Caution in the Preface section.

  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the rear wheel and tire assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.

  3. Object Number: 891501  Size: SH
  4. Remove the brake drum retaining screw.
  5. Notice: Do not pry against the splash shield or backing plate in attempt to free the drum. This will bend the splash shield or backing plate. A bent backing plate may cause brake chatter and/or pulsation.


    Object Number: 891781  Size: SH
  6. Remove the brake drum. Insert a screwdriver in the access hole and push the park brake lever toward the outside of the drum to release the shoes from the adjuster.
  7. If the brake drum is to be reinstalled to the vehicle, use the J 41013 in order to clean any rust or corrosion from the hub/flange mating surface of the brake drum.
  8. Use the J 42450-A in order to clean the wheel hub flange.

Installation Procedure

  1. Adjust the drum brakes. Refer to Drum Brake Adjustment .

  2. Object Number: 891501  Size: SH
  3. Install the brake drum.
  4. Notice: Refer to Fastener Notice in the Preface section.

  5. Install the brake drum retaining fastener.
  6. Tighten
    Tighten the brake drum retaining fastener to 4 N·m (35 lb in).

  7. Install the rear tire and the wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  8. Apply the brakes approximately three times in order to seat the brake shoes against the drum.
  9. Lower the vehicle.