GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC K Sierra - 4WD 🢒 General Information 🢒 General Information 🢒 Front Disc Brake Pads Replacement

Removal Procedure
  1. Remove 2/3 of the brake fluid from the master cylinder.
  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. Inspect the caliper operation. Refer to Brake Caliper Inspection .
  5. Remove the caliper. Do not separate the brake hose from the caliper. Refer to Front Brake Caliper Replacement .
  6. Suspend the caliper from the frame with mechanics wire. Do not allow the caliper to hang from the brake hose.

    7. Object Number: 369665 Size: SH
  7. Remove the caliper mounting bracket bolts.
  8. Remove the caliper mounting bracket from the steering knuckle assembly.

    9. Object Number: 369668 Size: SH
  9. Remove the brake pads from the caliper mounting bracket.
  10. Remove the clips from the inside ends of the caliper mounting bracket and discard.

    11. Object Number: 369671 Size: SH
  11. Inspect the caliper and mounting bracket. Refer to Brake Caliper Inspection .

Installation Procedure

    Object Number: 369668 Size: SH
  1. Install the clips to the inside ends of the caliper mounting bracket.
  2. Install the brake pads to the caliper mounting bracket.
    3. • Install the inner pad (1 wear indicator).
    • Install the outer pad (2 wear indicators).

    Object Number: 369665 Size: SH
  3. Install the caliper mounting bracket to the steering knuckle assembly.

    4. Important: The caliper mounting bracket bolts contain a special adhesive locking patch that is not reusable. It is recommended that the bolts be replaced with new service bolts and torqued to the recommended specification. If the bolts must be reused, follow the adhesive patch replacement procedure.

  4. Perform the following procedure if you are reusing the bolts.
    5. 4.1.  Remove all traces of the original adhesive patch.
    4.2. Clean the threads of the bolt with brake parts cleaner or the equivalent and allow to dry.
    4.3. Apply Threadlocker GM P/N 12345493 or Red LOCTITE™ #272 to the threads of the bolt.

    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 mounting bracket bolts to the steering knuckle.

    6. Tighten

        • Tighten the brake caliper mounting bracket to 175 N·m(129 lb ft) (15 series).
        • Tighten the brake caliper mounting bracket to 300 N·m(221 lb ft) (25 series).
  6. Install the caliper. Refer to Front Brake Caliper Replacement .
  7. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  8. Remove the safety stands.
  9. Lower the vehicle.
  10. Refill the master cylinder to the proper level with fresh brake fluid.
  11. Pump the brake pedal slowly and firmly in order to seat the brake pads.
  12. Burnish the brakes as needed. Refer to Brake Pad and Rotor Burnishing .