Sierra Classic 2500 4WD V8-6.0L (2007)
1. Remove the rear brake drum.
2. Using denatured alcohol, clean the rear brake shoes.
3. Important: Before removing the brake return spring, adjust the brake shoes to the lowest position. This will reduce the tension on the retractor
spring.
Remove the adjuster assembly.
4. Using a pair of channel locks, remove the retractor spring from the secondary brake shoe.
5. Remove the secondary brake shoe from the backing plate.
