GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Caution: Avoid taking the following actions when you service wheel brake parts:

   • Do not grind brake linings.
   • Do not sand brake linings.
   • Do not clean wheel brake parts with a dry brush or with compressed air.
Some models or aftermarket brake parts may contain asbestos fibers which can become airborne in dust. Breathing dust with asbestos fibers may cause serious bodily harm. Use a water-dampened cloth in order to remove any dust on brake parts. Equipment is available commercially in order to perform this washing function. These wet methods prevent fibers from becoming airborne.

  1. Remove two-thirds of the brake fluid from the master cylinder reservoir using a siphon (or equivalent).
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.

  4. Object Number: 172720  Size: SH
  5. Remove the 2 caliper pin bolts (2).
  6. Notice: Do not allow the brake components to hang from the flexible brake hoses. Damage to the brake hoses could result.


    Object Number: 464672  Size: SH
  7. Remove the caliper assembly (4) from the caliper bracket. Suspend the caliper assembly with wire in order to prevent damage to the brake hose.

  8. Object Number: 212409  Size: SH
  9. Remove the 2 brake pads (2, 3).
  10. Remove the 2 brake pad retainers (4).
  11. Remove the 2 brake pad insulators (1).

Inspection Procedure


    Object Number: 470319  Size: SH
  1. Measure the brake pads. The minimum thickness of the pad and the plate is 7.5 mm (0.295 in).
  2. If the thickness of the pad and the plate is less than the minimum specification, replace the pads.

  3. Object Number: 464672  Size: SH
  4. Inspect the caliper (4). Refer to Brake Caliper Inspection .
  5. Inspect the brake rotor for thickness variation. Refer to Brake Rotor Thickness Variation Check .
  6. Inspect the brake rotor for lateral runout. Refer to Brake Rotor Lateral Runout Check .
  7. Inspect the brake rotor surface. Refer to Brake Rotor Tolerance .

Installation Procedure


    Object Number: 212409  Size: SH
  1. Install the 2 brake pad insulators (1) to the brake pads (3,4).
  2. Install the 2 brake pad retainers (4).
  3. Important: Install the brake pad with the wear indicator to the inner pad position.

  4. Install the 2 brake pads to the caliper.
  5. 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.

    Important: Ensure the boots fit into the grooves securely.


    Object Number: 172720  Size: SH
  6. Install the caliper (1) to the caliper bracket. Secure with 2 caliper pin bolts.
  7. Tighten
    Tighten the caliper pin bolts to 27 N·m (20 lb ft).

  8. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  9. Lower the vehicle.
  10. Fill the master cylinder reservoir. Refer to Master Cylinder Reservoir Filling in Hydraulic Brakes.
  11. Start the engine.
  12. Press the brake pedal several times in order to position the caliper piston.
  13. Burnish the pads. Refer to Brake Pad and Rotor Burnishing .