GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2009 🢒 LaCrosse 🢒 Brakes 🢒 Hydraulic Brakes 🢒 Front Disc Brake Hardware Replacement

Removal Procedure

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


    Object Number: 178630 Size: SH
  1. Remove the brake caliper from the mounting bracket and support the brake caliper (2) with heavy mechanic's wire (1), or equivalent. Discard the old caliper pin bolts, new bolts are supplied in the hardware kit. It is not necessary to disconnect the hydraulic brake flexible hose from the caliper. Refer to Front Brake Caliper Replacement.

    2. Object Number: 727742 Size: SH
  2. Remove the brake pads (2) from the brake caliper bracket.
  3. Remove the brake pad retainers (1) from the brake caliper bracket.

    4. Object Number: 661837 Size: SH
  4. Remove the brake caliper bracket. Refer to Front Brake Caliper Bracket Replacement.
  5. Mount the brake caliper bracket (1) in a vise.
  6. Using a flat-bladed tool or punch carefully remove the caliper pin boots (2) from brake caliper bracket (1).

    7. Note: 

       • Clean the caliper bracket with denatured alcohol.
       • Dry with low pressure, non-lubricated, filtered air.
       • Inspect the brake caliper bracket for damage. If damaged, replace the bracket.

  7. Thoroughly clean the caliper bracket bores of all lubricant.

Installation Procedure

    Object Number: 793825 Size: SH
  1. Lubricate the bores (3), the inside part of the bolt boot (2) and the caliper pin bolts (4) with GM P/N 18047666, or equivalent.
  2. Press the new caliper pin bolt boots into the caliper pin bores.
  3. Install the brake caliper bracket. Refer to Front Brake Caliper Bracket Replacement.

    4. Object Number: 727742 Size: SH
  4. Install the brake pad retainers (1) to the caliper bracket.
  5. Install the brake pads (2) to the caliper bracket.

    6. Object Number: 178630 Size: SH
  6. Remove the heavy mechanics wire (1) and install the brake caliper. Refer to Front Brake Caliper Replacement.