GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 42450-A Hub Resurfacing Kit

Removal Procedure


    Object Number: 63987  Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  3. Notice: 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.

  4. Remove the brake caliper and the caliper mounting bracket as an assembly from the suspension knuckle and support the assembly with heavy mechanic's wire, or equivalent; ensure that there is no tension on the hydraulic brake flexible hose. Do NOT disconnect the hydraulic brake flexible hose from the caliper. Refer to Front Brake Caliper Bracket Replacement .
  5. Remove the brake rotor.

Installation Procedure


    Object Number: 63987  Size: SH

    Important: Whenever the rotor has been separated from the wheel bearing flange, clean any rust or contaminants from the wheel bearing flange and the brake rotor mating surfaces. Failure to do this may result in increased lateral runout of the brake rotor, and brake pulsation.

  1. Use the J 42450-A in order to clean any rust or corrosion from the wheel hub surface.
  2. Install the brake rotor over the wheel studs onto the wheel bearing flange.
  3. Install the brake caliper and the brake caliper bracket as an assembly to the suspension knuckle. Refer to Front Brake Caliper Bracket Replacement .
  4. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tire and Wheels.
  5. Lower the vehicle.
  6. Burnish the pads and rotors. Refer to Brake Pad and Rotor Burnishing .