REMOVAL & INSTALLATION
- Raise and support the vehicle.
- Remove the wheel and tire assembly.
Mark the relationship of the drum to the axle and remove the drum. If it cannot be slipped off easily, try the following:
- Check to see that the parking brake is fully released. If so, the brake shoes are probably locked against the drum. See the Adjustment procedure located under Brake Shoe Removal for details on how to back off the adjuster.
- Remove the access hole plug from the backing plate and insert a suitable tool through the hole to push the parking brake lever off its stop. This will allow the shoe linings to retract slightly.
- Insert a punch tool through the hole at the bottom of the splash shield. Tap gently on the tool to loosen the drum.
- Use a rubber mallet to tap gently on the outer rim of the drum.
- Reposition the drum making sure to align the matchmarks made during removal.
- Install the wheel and tire assembly, then carefully lower the vehicle
- The lug nut tightening specifications is 100 ft. lbs. (140 Nm).
- After removing the brake drum, wipe out the accumulated dust with a damp cloth.
Do not blow the brake dust out of the drums with compressed air or lung power. Brake linings may contain asbestos, a known cancer causing substance. Dispose of the cloth used to clean the parts after use.
- Inspect the drums for cracks, deep grooves, roughness, or scoring. Replace any drum which is cracked; do not try to weld it up. Light scoring of the drum not exceeding 0.020 in. (0.51mm) in depth will not affect brake operation.
- Smooth any slight scores by polishing the friction surface with fine emery cloth. Heavy or extensive scoring will cause excessive lining wear and should be removed from the drum through resurfacing, a job to be referred to your local machine shop or garage. The maximum finished diameter of the drums is stamped onto the outer surface of the brake drum.
- Inspect the brake drum for excessive taper and out-of-round. When measuring a drum for out-of-round, taper and wear, take measurements at the open and closed edges of the machined surface and at right angles to each other.