GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

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

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the rear wheel and tire. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  3. Remove the brake drum. Refer to Brake Drum Replacement .

  4. Object Number: 718440  Size: SH
  5. Remove the adjuster spring (3) from the adjuster actuator lever.
  6. Remove the straight end of the adjuster actuator spring from the brake shoe.
  7. Remove the adjuster actuator lever (1).

Installation Procedure


    Object Number: 718440  Size: SH
  1. Install the adjuster actuator lever (1).
  2. Install the straight end of the adjuster spring (3) to the brake shoe.
  3. Install the hook end of the adjuster spring to the adjuster actuator lever.

  4. Object Number: 178990  Size: SH
  5. Inspect the adjuster (2) for proper engagement with the drum brake system components.
  6. Important: Ensure that the adjuster engages the brake shoes (4) and (5), the park brake actuator (3), and the adjuster actuator (1) properly.

  7. Adjust the drum brakes. Refer to Drum Brake Adjustment .
  8. Install the brake drum. Refer to Brake Drum Replacement .
  9. Install the rear wheel and tire. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  10. Lower the vehicle.