Drum Brake Adjusting Hardware Inspection

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Refer to Brake Dust Warning .

Fig 1: Identifying Brake Shoe Adjuster Actuator Spring

Courtesy of GENERAL MOTORS CORP.

Visually inspect the adjuster actuator spring (1) for the following conditions:
- Excessive stretching, twisting, or binding
- Excessive bending or breakage at any point
- Excessive corrosion
- Missing

Fig 2: Identifying Brake Shoe Adjuster Actuator Lever

Courtesy of GENERAL MOTORS CORP.

Visually inspect the adjuster actuator lever (1) for the following conditions:
- Excessive bending or breakage
- Excessive wear at the adjuster star wheel engagement point
- Excessively bent or broken actuator spring attachment tab
- Missing

Fig 3: View Of Brake Shoe Adjuster Actuator Assembly

Courtesy of GENERAL MOTORS CORP.

Visually inspect the adjuster assembly (1) for the following conditions:
- Bent or broken
- Excessively worn, damaged, or missing actuator engagement teeth
- Seized adjuster screw threads
If any of the listed conditions were evident, the affected part or parts require replacement.