Removal Procedure
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
- Remove the rear tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
- Remove the fitting and the ring seals that attach the brake hose inlet fitting to the caliper.
- Disconnect the brake hose. Plug the openings in the caliper and the brake hose in order to prevent fluid loss or contamination.
- Remove the caliper guide pin bolts.
- Remove the caliper.
Warning: Refer to Brake Dust Warning in the Preface section.
Warning: Refer to Brake Fluid Irritant Warning in the Preface section.
Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution in the Preface section.
Installation Procedure
- Ensure the slide pins are lubricated with Silicone Brake Lubricant, GM P/N 89021536, ACDelco P/N 89021537 (Canadian P/N 89021538), or equivalent.
- If reusing the brake caliper guide pin bolt, prepare the guide pin bolt and the guide pin as follows:
- Apply high-temperature, high-strength threadlocker to 2/3 of the threaded length of the brake caliper guide pin bolt.
- Allow the threadlocker to cure approximately 10 minutes before installing the guide pin bolts.
- Install the caliper assembly with the guide pin bolts and tighten to 44 N·m(32 lb ft).
- Connect the brake hose with the fitting and ring seals. Tighten the fitting to 44 N·m(32 lb ft).
- Install the rear tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
- Lower the vehicle.
- With the engine OFF, gradually apply and release the brake pedal several times in order to position the caliper piston and the pads.
- Bleed the brake system. Refer to Hydraulic Brake System Bleeding.
Note: If reusing the brake caliper guide pin bolt, the threads of the brake caliper guide pin bolt and the threads of the guide pin must be free of threadlocker residue and debris prior to the application of threadlocker to ensure proper adhesion and fastener retention.
| 2.1. | Thoroughly clean the threadlocker residue from the guide pin bolt threads with denatured alcohol or equivalent and allow to dry. |
| 2.2. | Thoroughly clean the threadlocker residue from the guide pin threads with denatured alcohol or equivalent and allow to dry. |
Ensure there are no gaps in the threadlocker along the length of the filled area of the guide pin bolt.
Caution: Refer to Fastener Caution in the Preface section.
Warning: 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.
