REMOVAL & INSTALLATION
- Raise and support the rear of the vehicle safely on jackstands.
- Remove the rear tire and wheel assemblies.
- Matchmark the drum to the hub or hub studs for installation purposes.
- Remove the brake drum retainer screw.
- Pull the brake drum from the hub studs. It may by necessary to gently tap the rear edges of the drum using a soft-faced mallet to start it off the studs.
- If the drum will not come off past the shoes, it will be necessary to retract the brake shoe adjusting screw. Remove the access hole cover from the backing plate and turn the adjuster to retract the linings away from the drum.
- If removed, install a rubber adjustment hole cover before installing the drum.
- Install the drum aligning the match marks made during removal.
- Install the brake drum retainer screw.
- Install the rear tire and wheel assemblies.
- Remove the jackstands and carefully lower the vehicle.
Clean all grease, brake fluid, and other contaminants from the brake drum using a suitable brake cleaner. Visually check the drum for scoring, cracks, or other damage and replace, if necessary.
Check the drum inner diameter using a brake shoe clearance gauge. There are 2 important specifications when discussing rear drum diameters. The refinish diameter is the maximum diameter to which the drum may be machined. This diameter allows room for drum wear after it has been machined and returned to service. The discard diameter is the point at which the drum becomes unsafe to use and must be discarded. NEVER refinish a drum to the discard diameter. If after refinishing the drum the diameter is within 0.030 in. (0.76mm) of the discard diameter, the drum MUST be replaced.