Brake Shoe Replacement FWD
Removal Procedure
Caution: Avoid taking the following actions when you service wheel brake parts:
• | Do not grind brake linings. |
• | Do not sand brake linings. |
• | Do not clean wheel brake parts with a dry brush or with compressed air. |
Some models or aftermarket brake parts may contain asbestos fibers which can
become airborne in dust. Breathing dust with asbestos fibers may cause serious bodily
harm. Use a water-dampened cloth in order to remove any dust on brake parts. Equipment
is available commercially in order to perform this washing function. These wet methods
prevent fibers from becoming airborne.
- Remove the drum (17). Refer to
Brake Drum Replacement
.
- Remove the upper return spring (8).
- Remove the lower return spring (19).
- Remove the following components from the front shoe (20):
• | The hold-down spring cup (21) |
• | The hold-down spring (22) |
- Remove the anchor spring (18).
- Remove the front shoe with the adjuster lever (24)
- Remove the adjuster lever and the adjuster spring (23) from the front shoe.
- Remove the following components from the rear shoe (14):
• | The hold-down spring cup (16) |
• | The hold-down spring (15) |
- Disconnect the park brake cable from the park brake lever (12).
- Remove the rear shoe.
- Remove the following components:
• | The 2 C-shaped park brake lever washers (11,13) |
• | The adjuster strut (7,9,10) |
- Separate the adjuster strut components.
Inspection Procedure
- Measure the brake shoe lining thickness.
Specification
The minimum shoe lining thickness is 1.00 mm (0.039 in).
- If the shoe lining is less than the specification, replace the brake shoes.
- Inspect the drum brake hardware. Refer to
Drum Brake Hardware Inspection
.
- Inspect the drum brake adjusting hardware. Refer to
Drum Brake Adjusting Hardware Inspection
.
Installation Procedure
- Apply Lubriplate® Lubricant, GM P/N 1050109, Canadian P/N 5264008, or the equivalent, to the metal contact points on the backing plate (1) and the adjuster strut (3).
- Assemble the adjuster strut (2,3,4).
- Install the following components:
• | The adjuster strut (7,9,10) |
• | The park brake lever (12) |
• | The 2 C-shaped park brake lever washers (11,13) |
- Connect the park brake cable to the park brake lever.
- Install the following components to the rear shoe:
• | The hold-down spring (15) |
• | The hold-down spring cup (16) |
- Install the adjuster lever (24) and the adjuster spring (23) to the front shoe (20).
- Install the front shoe.
- Install the anchor spring (18).
- Install the following components to the front shoe:
• | The hold-down spring (22) |
• | The hold-down spring cup (21) |
- Install the lower return spring (19).
- Install the upper return spring (8).
- Adjust the drum brake if necessary. Refer to
Drum Brake Adjustment
.
- Install the drum (17). Refer to
Brake Drum Replacement
.
Brake Shoe Replacement AWD
Removal Procedure
Caution: Avoid taking the following actions when you service wheel brake parts:
• | Do not grind brake linings. |
• | Do not sand brake linings. |
• | Do not clean wheel brake parts with a dry brush or with compressed air. |
Some models or aftermarket brake parts may contain asbestos fibers which can
become airborne in dust. Breathing dust with asbestos fibers may cause serious bodily
harm. Use a water-dampened cloth in order to remove any dust on brake parts. Equipment
is available commercially in order to perform this washing function. These wet methods
prevent fibers from becoming airborne.
- Remove the drum (16). Refer to
Brake Drum Replacement
.
- Disconnect the return spring (9) from the shoes.
- Remove the following components from the front shoe (20):
• | The hold-down spring cup (18) |
• | The hold-down spring (19) |
- Remove the anchor spring (17).
- Remove the front shoe with the adjuster (22)
- Remove the adjuster and the adjuster spring (21) from the front shoe.
- Remove the following components from the rear shoe (13):
• | The hold-down spring cup (15) |
• | The hold-down spring (14) |
- Disconnect the park brake cable from the park brake lever (11).
- Remove the rear shoe.
- Remove the following components:
• | The 2 C-shaped park brake lever washers (12) |
• | The adjuster strut (7,8,10) |
- Separate the adjuster strut components.
Inspection Procedure
- Measure the brake shoe lining thickness.
Specification
The minimum shoe lining thickness is 1.00 mm (0.039 in).
- If the shoe lining is less than the specification, replace the brake shoes.
- Inspect the drum brake hardware. Refer to
Drum Brake Hardware Inspection
.
- Inspect the drum brake adjusting hardware. Refer to
Drum Brake Adjusting Hardware Inspection
.
Installation Procedure
- Apply Lubriplate® Lubricant, GM P/N 1050109, Canadian P/N 5264008, or the equivalent, to the metal contact points on the backing plate (1) and the adjuster strut (3).
- Assemble the adjuster strut (2,3,5) and the return spring (4).
- Install the following components:
• | The adjuster strut (7,8,10) |
• | The park brake lever (11) |
• | The 2 C-shaped park brake lever washers (12) |
- Connect the park brake cable to the park brake lever.
- Install the following components to the rear shoe:
• | The hold-down spring (14) |
• | The hold-down spring cup (15) |
- Install the adjuster lever (22) and the adjuster spring (21) to the front shoe (20).
- Install the front shoe.
- Install the anchor spring (17).
- Install the following components to the front shoe:
• | The hold-down spring (19) |
• | The hold-down spring cup (18) |
- Connect the return spring (9) to the shoes.
- Adjust the drum brake if necessary. Refer to
Drum Brake Adjustment
.
- Install the drum (16). Refer to
Brake Drum Replacement
.