GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

The brake rotor can be removed without separating the caliper from the caliper bracket (JC1 System).

    Important: Do not disconnect the brake hose from the caliper.

  1. Remove the caliper. Refer to Front Brake Caliper Replacement .

  2. Object Number: 139  Size: SH

    Notice: Do not allow the brake components to hang from the flexible brake hoses. Damage to the brake hoses could result.

  3. Suspend the caliper.
  4. Remove the brake pads (JC1 System). Refer to Front Disc Brake Pads Replacement .
  5. Remove the caliper bracket mounting bolts and the caliper bracket (JC1 System).
  6. Remove and dispose of the sheet metal retainers (JC1 System).
  7. Remove the wheel bearings (JM3 System). Refer to Front Wheel Hub, Bearing, and Seal Replacement in Front Suspension.
  8. Remove the rotor.
  9. Inspect and clean all the parts. Replace parts as necessary.
  10. Refinish the rotor if required. Refer to Brake Rotor Refinishing

Installation Procedure

Tools Required

J 42450-A Hub Cleaning Kit

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.


    Object Number: 409872  Size: SH
  1. Use the J 42450-A to clean the hub flange (JC1 System).
  2. Install the wheel bearings (JM3 System). Refer to Front Wheel Hub, Bearing, and Seal Replacement in Front Suspension.
  3. Install the rotor.
  4. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  5. Install the caliper bracket and the caliper bracket mounting bolts (JC1 System).
  6. Tighten
    Tighten the caliper bracket mounting bolts to 180 N·m (133 lb ft).

  7. Install the brake pads (JC1 System). Refer to Front Disc Brake Pads Replacement .
  8. Install the caliper. Refer to Front Brake Caliper Replacement .
  9. Pump the brake pedal until the brake pedal feels firm.
  10. Burnish replaced or refinished rotors. Refer to Brake Pad and Rotor Burnishing .