Front
Brake Rotor Replacement- FrontTools Required
- J 41013 Rotor Resurfacing Kit
- J 42450-A Wheel Hub Resurfacing Kit
Removal Procedure
Notice: Any new rotor must have the protective coating removed from the friction surfaces before being placed in service. Use Goodwrench Brake Parts Cleaner, GM P/N 123777981 (Canadian P/N 10953463), or the equivalent, and wipe the surface clean with clean cloths. Do not use gasoline, kerosene, or other oil base solvents which may leave an oily residue. This residue is damaging to the brake lining and is flammable.
1. Raise and suitably support the vehicle.
2. Remove the tire and wheel assembly.
3. Mark the relationship of the rotor to the hub.
4. Remove the 2 brake caliper bracket mounting bolts.
Notice: Support the brake caliper with heavy mechanic's wire, or equivalent, whenever it is separated from it's 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.
5. Remove the brake caliper and brake caliper mounting bracket as an assembly and support with heavy mechanic's wire or equivalent. DO NOT disconnect the hydraulic brake flexible hose from the caliper.
6. Remove the rotor retaining push nuts from the wheel studs (if applicable).
7. It may be necessary to strike the end of the hub or the rotor with a deadblow hammer to separate the rotor from the hub.
8. Remove the rotor.
Installation Procedure
Notice: Whenever the brake rotor has been separated from the wheel bearing flange, clean any rust or foreign material from the mating surface of the rotor and flange with the J 42450 hub cleaning kit. Failure to do this may result in increased lateral runout of the rotor and brake pulsation.
1. Use the J 42450-A to clean all rust and contaminants from the mating surface of the hub flange.
2. Use the J 41013 to 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.
Important: If the rotor was removed using the jack screw method you must ensure that the hub flange is free of nicks or marks caused by this procedure. Remove all raised nicks or marks before installing the rotor.
3. Align the rotor to its original position on the hub (if applicable) and install the rotor.
4. Install the caliper and caliper mounting bracket assembly.
5. Perform the following procedure before installing the brake caliper bracket mounting bolts.
- Remove all traces of the original adhesive patch.
- Clean the threads of the bolt with brake parts cleaner or the equivalent and allow to dry.
- Apply Threadlocker GM P/N 12345493 (Canadian P/N 10953488) to the threads of the bolt.
Notice: Refer to Fastener Notice in Service Precautions.
Fastener Notice
6. Install the 2 caliper bracket mounting bolts.
Tighten the mounting bolts to 175 Nm (121 ft. lbs.).
7. Install the tire and wheel assembly.
8. Lower the vehicle.
9. With the engine OFF, gradually apply the brake pedal to approximately 2/3 of it's travel distance.
10. Slowly release the brake pedal.
11. Wait 15 seconds, then repeat steps 9-10 until a firm pedal is obtained. This will properly seat the brake caliper pistons and brake pads.
12. Fill the master cylinder reservoir to the proper level with clean brake fluid.