GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 XLR 🢒 Brakes 🢒 Hydraulic Brakes 🢒 Rear Brake Caliper Bracket Replacement

Removal Procedure

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


    Object Number: 178630 Size: SH

    Caution: 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
  2. Remove the brake pads (1) from the brake caliper bracket (3).
  3. Remove the brake pad retainers (2) from the brake caliper bracket (3).

    4. Object Number: 450514 Size: SH

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

  4. Remove the brake caliper bracket bolts (1) and discard.
  5. Remove the brake caliper bracket.
  6. Inspect the brake mounting and hardware. Refer to Rear Disc Brake Mounting and Hardware Inspection.
  7. Inspect the brake caliper bracket for cracks or damage.
  8. Replace the brake caliper bracket if cracked or damaged.
  9. 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. Caution: Refer to Fastener Caution in the Preface section.

  2. Install the two NEW brake caliper mounting bracket bolts (1) and washers.

    3. The new brake caliper mounting bracket bolts will come with an adhesive already applied to the threads. Tighten the brake caliper mounting bracket bolts to 175 N·m (125 lb ft).

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

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