Disc Brake Mounting and Hardware Inspection

Fig 1: Disc Brake Mounting and Hardware Inspection

Courtesy of GENERAL MOTORS CORP.

1. Remove the disc brake caliper from the caliper mounting bracket.
2. Remove the disc brake pads from the caliper.
3. Inspect the disc brake pad mounting hardware (1-9) for the following:
   • Missing mounting hardware
   • Excessive corrosion
   • Bent mounting tabs
   • Looseness at the caliper mounting bracket
   • Looseness at the disc brake pads
4. If any of the conditions listed are found, the disc brake pad mounting hardware requires replacement.
5. Ensure the disc brake pads are held firmly in place on the caliper mounting bracket, yet slide easily on the mounting hardware without binding.
6. Inspect the caliper slide pins by gently pulling outward (without disengaging the slides from the boots), then pushing inward, and observe for the following:
   • Binding
   • Seizing
   • Looseness
   • Bent or damaged slide pins
   • Cracked or torn slide pin boots
   • Missing slide pin boots
   • Bent or damaged caliper mounting bracket
7. If any of the conditions listed are found, the caliper mounting hardware requires replacement.
8. Install the disc brake pads to the caliper.
9. Install the disc brake caliper to the mounting bracket.