Rear Brake Rotor Replacement (1500 Series)
Rear Brake Rotor Replacement (1500 Series)
Special Tools
* J-41013 - Rotor Resurfacing Kit Rotor Resurfacing Kit
* J-42450-A - Wheel Hub Resurfacing Kit Wheel Hub Resurfacing Kit
Warning:
Refer to Brake Dust Warning Brake Dust Warning.
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. Release the park brake, if necessary.
5. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle Service and Repair.
6. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation Removal and Replacement.
7. Compress the brake caliper piston:
1. Install a large C-clamp over the top of the caliper housing and against the back of the outboard pad.
2. Slowly tighten the C-clamp until the piston is pushed completely into the caliper bore.
3. Remove the C-clamp from the caliper.
8. Remove the brake caliper bracket mounting bolts.
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.
9. Remove the brake caliper and the bracket as an assembly and support with heavy mechanics wire or equivalent.
10. If installing the original brake rotor, mark the relationship of the rotor to the hub.
11. Adjust the park brake so that the adjuster is fully seated.
12. Remove the push nuts from the brake rotor if necessary.
13. Apply a small amount of penetrating oil to the wheel studs.
14. Install the lug nuts on the end of the wheel studs.
15. Using a dead blow hammer, tap the brake rotor between the wheel studs.
16. Remove the lug nuts from the wheel studs.
17. Remove the brake rotor from the axle flange.
Installation Procedure
Note:
Whenever the brake rotor has been separated from the hub/axle flange, any rust or contaminants should be cleaned from the hub/axle flange and the brake rotor mating surfaces. Failure to do this may result in excessive assembled lateral runout (LRO) of the brake rotor, which could lead to brake pulsation.
1. Using the J-42450-A - Wheel Hub Resurfacing Kit, clean the rust and contaminants from the mating surface of the hub flange.
2. Using the J-41013 - Rotor Resurfacing Kit, clean all rust and contaminants from the inside diameter of the hat section of the brake rotor to prevent any foreign material from getting between the brake rotor and the hub flange.
3. Align the rotor to its original position on the hub, if applicable, and install the rotor.
4. Install the caliper and caliper bracket assembly.
5. Perform the following procedure before installing the brake caliper bracket mounting bolts:
1. Remove all traces of the original adhesive patch from the threads of the bolts.
2. Clean the threads of the bolts 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 bolts.
Caution:
Refer to Fastener Caution Fastener Caution.
6. Install the brake caliper bracket mounting bolts and tighten to 165 Nm (122 lb ft).
7. Adjust the park brake. Refer to Parking Brake Adjustment (1500) Parking Brake Adjustment (1500)Parking Brake Adjustment (2500) Parking Brake Adjustment (2500).
8. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation Removal and Replacement.
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 9-10 until a firm pedal is obtained to properly seat the caliper pistons and pads.
12. Fill the master cylinder reservoir to the proper level with clean brake fluid, if necessary. Refer to Master Cylinder Reservoir Filling Master Cylinder Reservoir Filling.
13. If the brake rotor was refinished or replaced, burnish the brake pads and rotors. Refer to Brake Pad and Rotor Burnishing Procedures