Parking Brake (Rear Disc Brake)

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

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

   Brake lining thickness (excluding back metal): 

   • Standard value: 
     • 3.2 mm (0.126 in) 
   • Wear limit: 
     • 1.5 mm (0.059 in) 
   Fig 1: Identifying Brake Shoes

   Courtesy of SUBARU OF AMERICA, INC.
2. Check the disk rotor for wear, dents or other damage. If the inside surface of disk 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 value: 
     • 170 mm (6.69 in) 
   • Wear 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 them.
4. When the shoe return spring tension is excessively weakened, replace it.