GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Caution: Do not move the vehicle until a firm brake pedal is obtained. Failure to obtain a firm pedal before moving vehicle may result in personal injury.

Notice: Do not allow calipers to hang from the flexible hoses. Doing so can damage the hoses.

  1. Remove two-thirds of the brake fluid from the master cylinder.
  2. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Mark the relationship of the wheel to the hub.

  4. Object Number: 177016  Size: SH
  5. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tire and Wheels.
  6. Install 2 wheel nuts in order to retain the rotor.

  7. Object Number: 177027  Size: SH
  8. Push the pistons onto the caliper bores in order to provide clearance between the linings and the rotor.
  9. 6.1. Install a large C-clamp (2) over the top of the caliper housing (1) and against the back of the outboard pad.
    6.2. Slowly tighten the C-clamp until the pistons are pushed into the caliper bores. Slide the caliper off the rotor. Do not overtighten the C-clamp. This will deform the outboard pad.
  10. If the caliper is to be removed from the vehicle for unit repair (overhaul), then remove the brake hose bolt attaching the inlet fitting. If only the brake pads are being replaced, do not disconnect the inlet fitting.
  11. Plug the openings in the caliper housing and the pipe in order to prevent loss and contamination of the brake fluid.

  12. Object Number: 177025  Size: SH
  13. Remove the caliper slide pin bolts (1).
  14. Remove the caliper housing (2) from the rotor and the caliper mounting bracket (3).
  15. Inspect the following parts for cuts, tears, or deterioration. Replace any damaged parts:
  16. • The pin boots. Refer to Brake Caliper Bracket Replacement .
    • The piston boot. Refer to Front Brake Caliper Overhaul .
    • The rubber bushing in the caliper mounting bracket. Refer to Brake Caliper Bracket Replacement .
  17. Inspect the slide pin bolts for corrosion or damage. If corrosion is found, use new parts, including bushings, when installing the caliper. Do not attempt to polish away corrosion.

Installation Procedure


    Object Number: 180254  Size: SH

    Important: Verify that the calipers are positioned correctly. Each caliper is marked with an L (1) for Left or an R for Right. Position the bleeder valve on top.

  1. Position the calipers over the rotor and caliper mounting bracket.

  2. Object Number: 180544  Size: SH
  3. Install the caliper (3) over the rotor (1) and the caliper mounting bracket (2). Ensure that the bushings are in place.

  4. Object Number: 177029  Size: SH
  5. Lubricate the caliper slide pin bolts (1). Use silicone grease. Do not lubricate the threads.

  6. Object Number: 177063  Size: SH
  7. Lubricate the 2 rubber bushings (1) in the caliper mounting bracket. Use silicone grease.