GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

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


    Object Number: 178630  Size: SH

    Notice: Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause damage to the brake hose and in turn may cause a brake fluid leak.

  1. Remove the brake caliper from the mounting bracket and support the brake caliper (2) with heavy mechanic's wire (1), or equivalent; do NOT disconnect the hydraulic brake flexible hose from the caliper. Refer to Rear Brake Caliper Replacement .

  2. Object Number: 727773  Size: SH
  3. Remove the brake pads (1) from the brake caliper bracket (3).
  4. Remove the brake pad retainers (2) from the brake caliper bracket (3).

  5. Object Number: 450514  Size: SH

    Important: The brake caliper mounting bracket bolts must not be reused. Replace the bolts with new bolts whenever the bolts are removed or become loose.

  6. Remove the brake caliper bracket bolts (1) and discard.
  7. Remove the brake caliper bracket.
  8. Inspect the brake mounting and hardware. Refer to Rear Disc Brake Mounting and Hardware Inspection .
  9. Inspect the brake caliper bracket for cracks or damage.
  10. Replace the brake caliper bracket if cracked or damaged.
  11. Clean all the bolt adhesive residue from the brake caliper mounting bracket and the knuckle mating surfaces.

Installation Procedure


    Object Number: 450514  Size: SH
  1. Install the brake caliper bracket to the suspension knuckle.
  2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  3. Install the two NEW brake caliper mounting bracket bolts (1) and washers.
  4. The new brake caliper mounting bracket bolts will come with an adhesive already applied to the threads.

    Tighten
    Tighten the brake caliper mounting bracket bolts to 175 N·m (125 lb ft).

  5. Lubricate the brake caliper pin bolts with high temperature silicone lubricant.

  6. Object Number: 727773  Size: SH
  7. Install the brake pad retainers (2) to the brake caliper bracket (3).
  8. Install the brake pads (1) to the brake caliper bracket (3).
  9. Install the brake caliper. Refer to Rear Brake Caliper Replacement .