Silverado Classic 1500 2WD V6-4.3L (2007)
1. Remove the rubber plug from the backing plate.
2. Insert a screwdriver (2), until contact has been made with the adjuster lever (4).
3. Slightly push the adjuster lever (4) away from the adjuster (1).
4. Using a second screwdriver (3), rotate the adjuster (1) in a upward motion until the adjuster is seated.
5. Remove the brake drum.
5. Using the J 42450-A, clean the mating surface between the rear axle flange and brake drum.
Installation Procedure
1. Using the J 22364-01 (1), measure the brake drum.