Parking Brake (Rear Disc Brake)

Inspect the brake linings and disc rotor of both sides of the rear brake at the same time by removing disc rotor.

1. Inspect the brake shoes for damage or deformation and check the brake linings for wear beyond limit values.
   CAUTION: Always replace both primary and secondary brake shoes for the left and right wheels at the same time.

   Thickness of brake lining (except for back metal): 

   Standard: 

   3.2 mm (0.126 in) 

   Service limit: 

   1.5 mm (0.059 in) 

   Fig 1: Identifying Brake Shoes

   Courtesy of SUBARU OF AMERICA, INC.
2. Check the inside of disc rotor for wear, dents or other damage. If the inside surface of dick rotor is streaked, correct the surface with emery cloth (#200 or more). If it is unevenly worn or tapered, correct or replace it.

   Brake drum inside diameter: 

   Standard: 

   170 mm (6.69 in) 

   Service limit: 

   171 mm (6.73 in) 

   Fig 2: Identifying Brake Drum Inside Diameter

   Courtesy of SUBARU OF AMERICA, INC.
3. If the deformation or wear of back plate, shoe, etc. is noticeable, replace problem parts.
4. When the shoe return spring tension is excessively weakened, replace it.