GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the brake shoes. Refer to Brake Shoe Replacement .
  2. Use brake parts cleaner, GM P/N 12346139, or equivalent, in order to clean the wheel cylinder and the brake pipe.
  3. Place a container below the backing plate in order to catch the brake fluid.

  4. Object Number: 829894  Size: SH
  5. Remove the brake pipe (1) from the back of the wheel cylinder.
  6. Remove the cap from the bleeder valve.
  7. Remove the bleeder valve.

  8. Object Number: 819274  Size: SH
  9. Remove the 2 bolts and the wheel cylinder (6).

Installation Procedure


    Object Number: 819274  Size: SH
  1. Install the wheel cylinder (6) to the backing plate.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the 2 bolts in order to retain the wheel cylinder to the backing plate.
  4. Tighten
    Tighten the bolts to 10 N·m (88.5 lb in).

  5. Install the brake pipe fitting to the wheel cylinder.
  6. Tighten
    Tighten the brake pipe fitting to 15 N·m (11.1 lb ft).

  7. Install the bleeder valve.
  8. Install the brake shoes. Refer to Brake Shoe Replacement .
  9. Bleed the brakes and tighten the bleeder valve. Refer to Hydraulic Brake System Bleeding .
  10. Install the cap to the bleeder valve.