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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 484 (Disc Brakes) >> Removal & Installation >> Brake Caliper >> Removal (Rear - 2500 & 3500 Series)

Removal (Rear - 2500 & 3500 Series)

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  1. Inspect the fluid level in the brake master cylinder reservoir. See Figure.
  2. If the brake fluid level is midway between the maximum-full point and the minimum allowable level, no brake fluid needs to be removed from the reservoir before proceeding.
  3. If the brake fluid level is higher than midway between the maximum-full point and the minimum allowable level, remove brake fluid to the midway point before proceeding.
  4. Raise and support the vehicle.
  5. Remove the tire and wheel assembly.
  6. Inspect the caliper operation. See HYDRAULIC BRAKE COMPONENT OPERATION VISUAL INSPECTION  under ADJUSTMENTS & INSPECTION.
  7. Install a C-clamp over the body of the brake caliper, with the C-clamp ends against the rear of the caliper body and the outboard disc brake pad.
  8. Slowly tighten the C-clamp until the pistons are pushed into the caliper bores enough to remove the caliper from the pads.
  9. Remove the C-clamp from the caliper.
  10. Clean all dirt and foreign material from the brake hose end. See Figure.
    NOTE: Install a rubber cap or plug to the exposed brake pipe fitting end to prevent brake fluid loss and contamination.
  11. Remove the brake hose to caliper bolt from the brake caliper.
  12. Remove the brake hose from the caliper.
  13. Remove and discard the 2 copper brake hose gaskets. These gaskets may be stuck to the brake caliper housing or the brake hose end.
  14. Loosen the brake caliper mounting bolts. Do not remove.
  15. Remove the brake caliper mounting bracket bolts. See Figure.
    WARNING: Do not depress the brake pedal with the brake rotors/calipers and/or the brake drums removed. Damage to the brake system may result. If brake system damage occurs and is not repaired, vehicle damage and/or personal injury or death may result.
  16. Remove the brake caliper and the brake caliper mounting bracket as an assembly.
  17. Remove the brake caliper mounting bolts.
  18. Remove the brake caliper from the brake caliper mounting bracket.
  19. Inspect the caliper assembly. See BRAKE CALIPER INSPECTION  under ADJUSTMENTS & INSPECTION.
  20. Remove the brake pads from the brake caliper mounting bracket. See Figure.
  21. Remove the anti-rattle clips from the brake caliper mounting bracket.
  22. Inspect the brake caliper mounting bracket for cracks and/or damage. Replace if necessary.
  23. Inspect the brake caliper mounting bracket bushings for damage and/or wear. Replace the bushings if necessary.
  24. Perform the following procedure to replace the brake caliper mounting bracket bushings.
    • Insert a flat bladed tool between the bushing flange and the mounting bracket.
    • Work the tool around the bushing flange and remove the bushing from the mounting bracket.
    • Place a socket over the boot onto the bushing flange and install the bushing to the mounting bracket.
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