GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra Classic - 4WD 🢒 General Information 🢒 General Information 🢒 Rear Brake Caliper Replacement

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

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

Removal Procedure
  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, no brake fluid needs to be removed from the reservoir before proceeding.
  3. If the brake fluid level is higher than midway between the maximum-full point and the minimum allowable level, remove brake fluid to the midway point before proceeding.
  4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  5. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .

    6. Object Number: 687185 Size: SH
  6. Compress the brake caliper pistons.
    7. 6.1. Install 2 large C-clamps over the top of the caliper housing and against the back of the outboard brake pad.
    6.2. Slowly tighten the C-clamps until the caliper pistons are pushed completely into the caliper bores.
    6.3. Remove the C-clamps from the caliper.
  7. Clean all dirt and debris from the brake caliper and fittings.

    8. Object Number: 363420 Size: SH

    Important: Cap or plug to the brake hose to prevent brake fluid leakage and contamination of the brake system.

  8. Remove the brake hose to caliper bolt.
  9. Remove the brake hose from the caliper.

    10. Important: 

       • Ensure that the copper gaskets are not attached to the brake caliper or the brake hose.
       • DO NOT re-use the copper gaskets, replace them with NEW.

  10. Remove and discard the 2 copper brake hose gaskets.

    11. Object Number: 913587 Size: SH
  11. Remove the brake caliper guide pin bolts from the brake caliper.
  12. Remove the brake caliper from the mounting bracket.

Installation Procedure
  1. Install the brake caliper to the mounting bracket.

    2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 913587 Size: SH
  2. Install the brake caliper guide pin bolts.

    3. Tighten
    Tighten the bolts to 108 N·m (80 lb ft).

  3. Remove the cap or plug from the brake hose to caliper fitting.

    4. Object Number: 363420 Size: SH

    Important: Install 2 NEW copper brake hose gaskets.

  4. Assemble the 2 NEW copper brake hose gaskets to the brake hose bolt and brake hose.
  5. Install the brake hose to caliper bolt.

    6. Tighten
    Tighten the bolt to 45 N·m (33 lb ft).

  6. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding .
  7. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
  8. Fill the master cylinder reservoir to the proper level with clean brake fluid, if necessary. Refer to Master Cylinder Reservoir Filling .