Rear Brake Inspection

Using a drum gauge or equivalent, measure the inside diameter of the drum.

Standard inside diameter:

295.0 mm (11.614 in.)

Maximum inside diameter:

297.0 mm (11.693 in.)

Using a ruler, measure the thickness of the shoe lining.

Standard thickness:

5.4 mm (0.213 in.)

Minimum thickness:

1.0 mm (0.039 in.)

HINT:

If any of the shoes have to be replaced, replace all of the shoes in order to maintain even braking.

Apply chalk to the inside surface of the drum. Then grind the brake shoe lining on the drum until full contact is achieved.
If the drum and brake shoe lining do not have full contact, use a brake shoe grinder or replace the brake shoe.

After the inspection, wipe chalk off the inside surface of the drum and lining surface.

Check the cylinder bore and piston for rust or scoring.
If necessary, replace the cylinder and piston.