Brake Caliper Bracket Replacement - Front

Brake Caliper Bracket Replacement - Front (25/3500 Series)

Caution: Refer to Brake Dust Caution in Service Precautions.

Removal Procedure





1. Inspect the fluid level in the brake master cylinder reservoir.
2. If the fluid level is midway between the maximum - full point, and the minimum allowable level, no fluid needs to be removed from the reservoir before proceeding.
3. If the fluid level is higher than midway between the maximum - full point, and the minimum allowable level, remove fluid to the midway point before proceeding.
4. Remove the tire and wheel assembly.
5. Compress the brake caliper pistons.
1. Install 2 large C-clamps over the top of the caliper housing and against the back of the outboard pad.
2. Slowly tighten the C-clamps until the pistons are pushed completely into the caliper bores.
3. Remove the C-clamps from the caliper.





6. Notice: Refer to Brake Caliper Notice in Service Precautions.

Remove the brake caliper bolts. Support the caliper with heavy mechanic's wire or equivalent. DO NOT disconnect the hydraulic brake flexible hose from the caliper.





7. Remove the brake pads from the caliper bracket.
8. Remove the anti-rattle clips.





9. Remove the brake caliper bracket bolts (2).
10. Remove the brake caliper bracket (1).
11. Remove any contaminants or foreign material from the inside ends of the brake caliper bracket.
12. Clean the mounting surface and threads of the brake caliper bracket.

Installation Procedure





1. Install the brake caliper bracket (1).
2. Perform the following procedure before installing the brake caliper bracket bolts.
1. Remove all traces of the original adhesive patch.
2. Clean the threads of the bolt with denatured alcohol or equivalent and allow to dry.
3. Apply Threadlocker GM P/N 12345493 (Canadian P/N 10953488) to the threads of the bolt.

3. Notice: Refer to Fastener Notice in Service Precautions.

Install the brake caliper bracket bolts (2).
^ Tighten the bolts to 300 Nm (221 ft. lbs.).





4. Install the anti-rattle clips to the brake caliper bracket.
5. Install the brake pads.
6. Slide the brake pads in until they contact the rotor.





7. Install the brake caliper bolts.
^ Tighten the bolts to 108 Nm (80 ft. lbs.).
8. Install the tire and wheel assembly.
9. With the engine OFF, gradually apply the brake pedal to approximately 2/3 of its travel distance.
10. Slowly release the brake pedal.
11. Wait 15 seconds, then repeat steps 10-11 until a firm pedal is obtained. This will properly seat the caliper pistons and pads.
12. Fill the master cylinder reservoir to the proper level with clean brake fluid, if necessary.