GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

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

Caution: Refer to Brake Fluid Irritant Caution in the Preface section.

Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice in the Preface section.

  1. Inspect the fluid level in the brake master cylinder reservoir.
  2. If the brake fluid level is midway between the maximum-full point and the minimum allowable level, then no brake fluid needs to be removed from the reservoir before proceeding. If the brake fluid level is higher than midway between the maximum-full point and the minimum allowable level, then remove brake fluid to the midway point before proceeding.
  3. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  4. Remove the rear tire and the wheel assembly. Refer to Tire and Wheel Removal and Installation .
  5. Hand tighten 2 wheel lug nuts to retain the rotor to the hub.

  6. Object Number: 176947  Size: SH
  7. Install a large C-clamp (3) over the top of the brake caliper (2) and against the back of the outboard brake pad.
  8. Tighten the C-clamp (3) until the caliper piston is pushed into the caliper bore enough to slide the caliper off the rotor.
  9. Remove the C-clamp (3) from the caliper.

  10. Object Number: 176035  Size: SH
  11. Remove the brake hose-to-caliper bolt (1) from the caliper.
  12. Discard the 2 copper brake hose gaskets (3). These gaskets may be stuck to the brake caliper and/or the brake hose end.

  13. Plug the opening in the rear brake hose (2) to prevent excessive brake fluid loss and contamination.

  14. Object Number: 176946  Size: SH
  15. Remove the caliper bolts (1 and 3).
  16. Remove the caliper (3) from the rotor (4) and the caliper bracket (1).
  17. Inspect the caliper bracket bolt boots on the caliper bracket for the following conditions:
  18. • Cuts
    • Tears
    • Deterioration
    • Replace any damaged caliper bracket bolt boots. Refer to Rear Disc Brake Hardware Replacement .
  19. Inspect the caliper bolts (2) for corrosion or damage. If corrosion is found, use new caliper bolts, including bushings, when installing caliper.

Installation Procedure


    Object Number: 176946  Size: SH
  1. Install the caliper (3) over the rotor (4) and the caliper bracket (1). Ensure that the bushings are in place.

  2. Object Number: 176945  Size: SH
  3. Lubricate the caliper bolts (1 and 3). Use silicone grease. Do not lubricate the threads.
  4. Lubricate the 2 bolt boots (13 and 4) in the caliper bracket (12). Use silicone grease.
  5. Notice: Refer to Fastener Notice in the Preface section.

  6. Install the caliper bolts (1 and 3). Ensure that the bolt boots fit securely in the groove of the caliper bolts. Be sure not to pinch or tear the boots. If the boots are damaged, they must be replaced.
  7. Tighten
    Tighten the bolts to 44 N·m (32 lb ft).


    Object Number: 176035  Size: SH

    Important: Install NEW copper gaskets.

  8. Assemble the brake hose bolt (1) and the NEW copper brake hose gaskets (3) to the brake hose (2).
  9. Install the brake hose-to-caliper bolt to the brake caliper.
  10. Tighten
    Tighten the bolt to 54 N·m (40 lb ft).

  11. Remove the 2 wheel lug nuts retaining the rotor to the hub.
  12. Install the rear tire and the wheel assembly. Refer to Tire and Wheel Removal and Installation .
  13. Lower the vehicle.
  14. Fill the master cylinder to the proper level with clean brake fluid. Refer to Master Cylinder Reservoir Filling .
  15. Bleed the brake system. Refer to Hydraulic Brake System Bleeding .
  16. Inspect the hydraulic brake system for brake fluid leaks.