- Inspect all brake parts and springs for rust, wear and damage.
- Measure the brake lining thickness. The minimum allowable thickness is 0.039 in. (1.0mm). If the lining does not meet the minimum specification, replace it.
If one of the brake shoes needs to be replaced, replace ALL the rear shoes in order to maintain even braking.
- Inspect the brake drum and measure inside diameter of the drum as detailed in this section.
- Place the shoe into the brake drum and check that the lining is in proper contact with the drum's surface. If the contact is improper, repair the lining with a brake shoe grinder or replace the shoe.
- To measure the clearance between brake shoe and parking brake lever, temporarily install the parking brake and automatic adjusting levers onto the rear shoe, using a new C-washer. With a feeler gauge, measure the clearance between the shoe and the lever. The clearance should be within 0.0138 in. (0-0.35mm). If the clearance is not as specified, use a new washer to adjust it. When the clearance is correct, stake the C-washer with pliers.