GM Service Manual Online
For 1990-2009 cars only

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

Removal Procedure


    Object Number: 790034  Size: SH
  1. Release the park brake, if applied.
  2. Raise and the vehicle. Refer to Lifting and Jacking the Vehicle.
  3. Remove the wheel and the tire. Refer to Tire and Wheel Removal and Installation.
  4. Note: In the following service procedure, the brake caliper and mounting bracket does not have to be separated. Relocated the brake caliper and bracket to the side and secure.

  5. Remove the brake caliper and bracket. Refer to Rear Brake Caliper Bracket Replacement.

  6. Object Number: 748573  Size: SH
  7. Remove the brake rotor.

  8. Object Number: 777351  Size: SH
  9. Remove the park brake cable from the park brake lever.

  10. Object Number: 370485  Size: SH
  11. Slide the park brake shoe (2) down until it is disengaged from the hold down spring (3).
  12. Lift the shoe (2) away from the backing plate and slide the shoe up, off of the actuation mechanism (1).
  13. Remove the shoe (2) over the axle flange and from the vehicle.
  14. Clean the debris and the dust from the park brake components using a clean towel.
  15. Turn the adjustment screw to the fully home position in the notched adjustment nut, then back it off 1/4 turn.
  16. Align the slots in both the adjusting screw and tappet to be parallel with the backing plate face.
  17. Using denatured alcohol, clean the rear backing plate of dirt and foreign materials.
  18. Using non-lubricated, filtered air, dry the backing plate.

Installation Procedure


    Object Number: 370485  Size: SH
  1. Install a new park brake shoe (2) over the axle flange.
  2. Position the shoe (2) on the actuation mechanism.
  3. Holding the lower end of the shoe (2) away from the backing plate, slide the shoe down, over the top of the hold down spring (3).
  4. Place the lower end of the shoe (2) against the backing plate.
  5. Slide the shoe (2) up and under the hold down spring (3).
  6. Inspect the position of the shoe assembly. The shoe must be central on the backing plate and with both tips located in the slots of the actuation mechanism (1).
  7. Manually check the park brake for proper operation by moving the park brake actuator lever and observing the movement of the actuation mechanism.

  8. Object Number: 777351  Size: SH
  9. Install the park brake cable to the park brake lever.
  10. Adjust the park brake shoe. Refer to Park Brake Adjustment.

  11. Object Number: 748573  Size: SH
  12. Install the brake rotor.

  13. Object Number: 790034  Size: SH
  14. Install the brake caliper and mounting bracket. Refer to Rear Brake Caliper Bracket Replacement.
  15. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation.
  16. Lower the vehicle. Refer to Lifting and Jacking the Vehicle.