GM Service Manual Online
For 1990-2009 cars only

Replacement brake lining material is recommended for this vehicle to maintain the balance between the front and the rear brake performance. Replacement brake parts have been carefully selected to provide the proper brake balance for the purposes of stopping distance and control over the full range of operating conditions. Installation of front or rear brake lining material with performance characteristics different from the recommended replacement parts can change the intended brake balance of this vehicle.

Removal Procedure

  1. Raise the vehicle and support the vehicle with safety stands.
  2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  3. Mark the relationship of the brake drum to the axle hub.
  4. Remove the brake drum from the axle.

  5. Object Number: 183  Size: SH
  6. Remove the brake shoe return springs.

  7. Object Number: 185  Size: SH
  8. Remove the brake shoe guide.

  9. Object Number: 203  Size: SH
  10. Remove the hold down springs.
  11. Remove the actuator lever and the actuator lever pivot.
  12. Remove the actuator lever return spring.
  13. Remove the actuator link.

  14. Object Number: 204  Size: SH
  15. Remove the park brake strut and the strut spring.
  16. Remove the park brake lever.

  17. Object Number: 207  Size: SH
  18. Remove the brake shoes.
  19. Remove the adjusting screw assembly.
  20. Remove the adjusting screw spring from the brake shoes.
  21. Inspect all parts for discoloration due to heat or stress. Replace parts as needed.
  22. Replace all worn parts.
  23. Inspect the wheel cylinder for signs of leakage.
  24. Inspect the brake drum for scoring and machining tolerance. Refer to Brake Drum Inspection .

Installation Procedure


    Object Number: 231  Size: SH
  1. Lubricate the brake shoe backing plate, the adjusting screw threads, socket and socket face with a thin coat of white lithium grease or equivalent.
  2. Important: Do not interchange the right and left adjusting screws.


    Object Number: 207  Size: SH
  3. Install the adjusting screw assembly and the adjusting screw spring on the brake shoes. The coils of the adjusting screw spring must not touch the adjusting screw.
  4. Install the brake shoes on the backing plate.

  5. Object Number: 204  Size: SH
  6. Install the park brake lever.
  7. Install the strut spring on the park brake strut.
  8. Install the park brake strut.

  9. Object Number: 203  Size: SH
  10. Install the actuator lever and the lever pivot.
  11. Install the actuator link.
  12. Install the actuator lever return spring.
  13. Install the hold down pins.
  14. Install the hold down springs.

  15. Object Number: 185  Size: SH
  16. Install the brake shoe guide and the actuator link.

  17. Object Number: 183  Size: SH
  18. Install the brake shoe return springs.
  19. Install the brake drum. Align the marks made during the disassembly.
  20. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels. Align the marks made during the disassembly.
  21. Adjust the brakes. Refer to Drum Brake Adjustment .
  22. Remove the safety stands and lower the vehicle.