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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 481 (Disc Brake System) >> Repair Instructions >> Rear Brake Caliper Hardware Replacement (2500 Series) >> Installation Procedure

Installation Procedure

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    Fig 1: Caliper Mounting Bolt, Bracket, Boot & Slid Pins
    GM695066Courtesy of GENERAL MOTORS COMPANY
  1. Lubricate the caliper bracket bushings and the slide pins with high temperature silicone brake lubricant.
  2. Install the slide pin boots (4) to the caliper bracket.
  3. Install the slide pins (5) to the caliper bracket (3).
    4. Fig 2: View Of Disc Brake Pads & Brake Caliper Mounting Bracket
    GM369668Courtesy of GENERAL MOTORS COMPANY
  4. Install the anti-rattle clips to the caliper bracket.
  5. Install the brake pads.
  6. Install the caliper to the caliper bracket.
  7. Perform the following procedure before installing the caliper bracket bolts and the brake caliper bolts:
    1. Remove all traces of the original adhesive patch.
    2. Clean the threads of the bolt with brake parts cleaner or the equivalent and allow to dry.
    3. Apply Threadlocker GM P/N 12345493 (Canadian P/N 10953488) to the threads of the bolt.
  8. Install the brake caliper bolts. DO NOT tighten.
    9. Fig 3: View Of Rear Caliper Mounting Bolts
    GM913587Courtesy of GENERAL MOTORS COMPANY
  9. Install the brake caliper bracket and caliper as an assembly.
    10. CAUTION:

    Refer to Fastener Caution .

  10. Install the brake caliper bracket bolts and tighten to 200 N.m (148 lb ft).
  11. Tighten the brake caliper bolts to 108 N.m (80 lb ft).
  12. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
  13. With the engine OFF, gradually apply the brake pedal approximately 2/3 of its travel distance.
  14. Slowly release the brake pedal.
  15. Wait 15 seconds, then repeat steps 7-8 until a firm brake pedal is obtained. This will properly seat the brake caliper pistons and brake pads.
  16. Fill the master cylinder reservoir to the proper level with clean brake fluid, if necessary. Refer to Master Cylinder Reservoir Filling .
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