Rear Drum Brakes & Shoes: Inspection
- Measure wear of brake lining at most worn area. Minimum thickness is .039" (1.0 mm). If thickness is less than.039" (1.0 mm), replace shoe and lining assembly. If there is a significant difference in brake lining thicknesses between right and left shoe, inspect wheel cylinder piston.
- Measure inside diameter of hub and drum at 2 or more locations. Minimum diameter is 9.0" (230.6 mm). If diameter is less than 9.0" (230.6 mm) or is badly out of balance, replace brake drum and shoe and lining assembly.