Avalanche, Sierra, Silverado, C&K Series, 1999-2005

Brake Pads

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Removal & Installation



  1. Remove or disconnect the following:

    2 / 3 of the brake fluid from the master cylinder
     
    Tire and wheel assembly
     
    Caliper. Suspend the caliper from the frame with mechanic's wire. Do not allow the caliper to hang from the brake hose.
     
    Caliper mounting bracket bolts from the backing plate
     
    Brake pads from the caliper mounting bracket
     
    Clips from the inside ends of the caliper mounting bracket and discard
     

  2.  

To install:

  1. Install or connect the following:

    Clips to the inside ends of the caliper mounting bracket
     
    Brake pads to the caliper mounting bracket
     
    Inner pad (1 wear indicator)
     
    Outer pad (2 wear indicators)
     
    Clips to the inside ends of the caliper mounting bracket
     
    Caliper mounting bracket to the backing plate assembly (15 series).
     

  2.  
  3. Install the caliper mounting bracket to the backing plate assembly (25 series). Perform the following procedure before installing the caliper mounting bracket bolts.
    1. Remove all traces of the original adhesive patch.
    2.  
    3. Clean the threads of the bolt with brake parts cleaner or the equivalent and allow to dry.
    4.  
    5. Apply red Loctite®272 to the threads of the bolt.
    6.  

  4.  
  5. Install or connect the following:

    Caliper mounting bracket bolts to the steering knuckle. Tighten to 148 ft. lbs. (200 Nm) on the 15 series; 122 ft. lbs. (165 Nm) on the 25 series.
     
    Caliper and tighten the bolts to 80 ft. lbs. (108 Nm).
     
    Tire and wheel assembly
     

  6.  
  7. Refill the master cylinder to the proper level with fresh brake fluid. Pump the brake pedal slowly and firmly in order to seat the brake pads. Burnish the brakes as needed.
  8.  


CAUTION
Dust and dirt accumulating on brake parts during normal use may contain asbestos fibers from production or aftermarket brake linings. Breathing excessive concentrations of asbestos fibers can cause serious bodily harm. Exercise care when servicing brake parts. Do not sand or grind brake lining unless equipment used is designed to contain the dust residue. Do not clean brake parts with compressed air or by dry brushing. Cleaning should be done by dampening the brake components with a fine mist of water, then wiping the brake components clean with a dampened cloth. Dispose of cloth and all residue containing asbestos fibers in an impermeable container with the appropriate label. Follow practices prescribed by the Occupational Safety and Health Administration (OSHA) and the Environmental Protection Agency (EPA) for the handling, processing, and disposing of dust or debris that may contain asbestos fibers.

  1. Remove the caliper.
  2.  
  3. Suspend the caliper with a piece of wire.
    WARNING
    Do not allow calipers to hang from the flexible hoses; doing so can damage the hoses.

  4.  
  5. Remove the inboard lining and the outboard lining.
  6.  
  7. Use a wire brush to remove any corrosion from the machined surfaces of the steering knuckle and the caliper.
  8.  

To install:

  1. Lubricate the caliper and the steering knuckle, or support, sliding surfaces and the spring with Aeroshell® No.5 or the equivalent.
  2.  
  3. Place the new pad in a vise.
  4.  
  5. Compress the brake pad tangs as necessary to obtain a secure fit between the outer brake pad and the caliper.
  6.  
  7. Install the outer brake pad onto the caliper. Use a C-clamp to install the pad onto the caliper if it is necessary. Do not allow the C-clamp to come in contact with the lining. Insert a used brake pad between the C-clamp and the new brake lining.
  8.  
  9. File the leading edge of the brake pad tang to aid in the installation of the brake pad to the caliper.
  10.  
  11. Install the caliper.
    CAUTION
    Pump the brakes until the brake pedal is firm before moving the vehicle. Check the brake fluid level in the master cylinder after pumping the brakes.

  12.  

  1. Remove or disconnect the following:

    2 / 3 of the brake fluid from the master cylinder
     
    Tire and wheel assembly
     
    Caliper. Suspend the caliper from the frame with mechanic's wire. Do not allow the caliper to hang from the brake hose.
     
    Brake pads from the caliper mounting bracket
     
    Clips from the inside ends of the caliper mounting bracket and discard

    Click image to see an enlarged view

    Fig. Rear pad removal-6 bolt hubs



    Click image to see an enlarged view

    Fig. Rear pad removal-8 bolt hubs

     

  2.  

To install:

  1. Install or connect the following:

    Clips to the inside ends of the caliper mounting bracket
     
    Brake pads to the caliper mounting bracket
     
    Inner pad
     
    Outer pad
     
    Caliper
     
    Tire and wheel assembly
     

  2.  
  3. Refill the master cylinder to the proper level with fresh brake fluid. Pump the brake pedal slowly and firmly in order to seat the brake pads. Burnish the brakes as needed.
  4.  

  1. Remove or disconnect the following:

    2 / 3 of the brake fluid from the master cylinder
     
    Tire and wheel assembly
     
    Caliper. Suspend the caliper from the frame with mechanic's wire. Do not allow the caliper to hang from the brake hose.
     
    Brake pads from the caliper mounting bracket
     
    Clips from the inside ends of the caliper mounting bracket and discard

    Click image to see an enlarged view

    Fig. Rear pad removal-2007 models, except Classic with 6 bolt hubs



    Click image to see an enlarged view

    Fig. Rear pad removal-2007 models, except Classic with 8 bolt hubs

     

  2.  

To install:

  1. Install or connect the following:

    Clips to the inside ends of the caliper mounting bracket
     
    Brake pads to the caliper mounting bracket
     
    Inner pad
     
    Outer pad
     
    Caliper and tighten the bolts to 28 ft. lbs. (38 Nm) on 6 bolt hubs or 80 ft. lbs. (108 Nm) on 8 bolt hubs.
     
    Tire and wheel assembly
     

  2.  
  3. Refill the master cylinder to the proper level with fresh brake fluid. Pump the brake pedal slowly and firmly in order to seat the brake pads. Burnish the brakes as needed.
  4.  

2-Wheel Drive
  1. Remove 2 / 3 of the brake fluid from the master cylinder.
  2.  
  3. Raise and support the vehicle.
  4.  
  5. Remove the tire and wheel assembly.
  6.  
  7. Remove the caliper. Suspend the caliper from the frame with mechanic's wire. Do not allow the caliper to hang from the brake hose.
  8.  
  9. Remove the caliper mounting bracket bolts from the backing plate (15 series).
  10.  
  11. Remove the caliper mounting bracket bolts from the backing plate (25 series).
  12.  
  13. Remove the brake pads from the caliper mounting bracket (15 series). Remove the clips from the inside ends of the caliper mounting bracket and discard.
  14.  
  15. Remove the brake pads from the caliper mounting bracket (25 series). Remove the clips from the inside ends of the caliper mounting bracket and discard.
  16.  

To install:

  1. Install the clips to the inside ends of the caliper mounting bracket.
  2.  
  3. Install the brake pads to the caliper mounting bracket (15 series).
  4.  
  5. Install the inner pad (1 wear indicator).
  6.  
  7. Install the outer pad (2 wear indicators).
  8.  
  9. Install the clips to the inside ends of the caliper mounting bracket.
  10.  
  11. Install the brake pads to the caliper mounting bracket (25 series).
  12.  
  13. Install the inner pad (1 wear indicator).
  14.  
  15. Install the outer pad (2 wear indicators).
  16.  
  17. Install the caliper mounting bracket to the backing plate assembly (15 series).
  18.  
  19. Install the caliper mounting bracket to the backing plate assembly (25 series). Perform the following procedure before installing the caliper mounting bracket bolts.
    1. Remove all traces of the original adhesive patch.
    2.  
    3. Clean the threads of the bolt with brake parts cleaner or the equivalent and allow to dry.
    4.  
    5. Apply red Loctite®272 to the threads of the bolt.
      NOTE
      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.

    6.  

  20.  
  21. Install the caliper mounting bracket bolts to the steering knuckle.
  22.  
  23. Tighten the brake caliper mounting bracket to 148 ft. lbs. (200 Nm) on the 15 series; 122 ft. lbs. (165 Nm on the 25 series.
  24.  
  25. Install the caliper.
  26.  
  27. Install the tire and wheel assembly.
  28.  
  29. Lower the vehicle.
  30.  
  31. Refill the master cylinder to the proper level with fresh brake fluid. Pump the brake pedal slowly and firmly in order to seat the brake pads. Burnish the brakes as needed.

    Click image to see an enlarged view

    Fig. Rear pad removal-15 Series Silverado/Sierra

  32.  

4-Wheel Drive
  1. Remove 2 / 3 of the brake fluid from the master cylinder.
  2.  
  3. Remove the tire and wheel assembly.
  4.  
  5. Inspect the caliper operation.
  6.  
  7. Remove the caliper.
  8.  
  9. Suspend the caliper from the frame with mechanic's wire. Do not allow the caliper to hang from the brake hose.
  10.  
  11. Remove the caliper mounting bracket bolts from the backing plate (15 series).
  12.  
  13. Remove the caliper mounting bracket bolts from the backing plate (25 series).
  14.  
  15. Remove the brake pads from the caliper mounting bracket.
  16.  
  17. Remove the clips from the inside ends of the caliper mounting bracket and discard.
  18.  
  19. Inspect the caliper and mounting bracket.
  20.  

To install:

  1. Install the clips to the inside ends of the caliper mounting bracket. Install the brake pads to the caliper mounting bracket (15 series). The inner pad has 1 wear indicator; the outer pad has 2 wear indicators.
  2.  
  3. Install the caliper mounting bracket to the backing plate assembly.
  4.  
  5. Install the caliper mounting bracket to the backing plate assembly. Perform the following procedure before installing the caliper mounting bracket bolts.
    1. Remove all traces of the original adhesive patch.
    2.  
    3. Clean the threads of the bolt with brake parts cleaner or the equivalent and allow to dry.
    4.  
    5. Apply Red Loctite® #272 to the threads of the bolt.
    6.  

  6.  
  7. Install the caliper mounting bracket bolts to the steering knuckle. Tighten the brake caliper mounting bracket to 148 ft. lbs. (200 Nm) on the 15 series, or, 122 ft. lbs. (165 Nm) on the 25 series.
  8.  
  9. Install the caliper.
  10.  
  11. Install the tire and wheel assembly.
  12.  
  13. Refill the master cylinder to the proper level with fresh brake fluid. Pump the brake pedal slowly and firmly in order to seat the brake pads. Burnish the brakes as needed.
  14.  

 
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