REMOVAL & INSTALLATION
See Figures 1 through 5
- Raise and safely support the vehicle.
- Remove the rear wheel(s).
- With a small prytool, remove the grease cap from the hub.
- Remove the cotter pin with needle nose pliers.
- Remove the nut and keyed flat washer from the spindle.
- Remove the outer wheel bearing.
- Remove the hub and drum assembly as a unit.
If the hub/drum assembly will not come off, pry the rubber plug from the backing plate inspection hole. On vehicles with 7 in. brakes, insert a long, thin prytool in the hole until it contacts the adjuster assembly pivot. Apply side pressure on this pivot point to allow the adjuster quadrant to ratchet and release the brake adjustment. On vehicles with 8 in. brakes, remove the brake line-to-axle retention bracket. This will allow sufficient room for insertion of a long thin prytool to disengage the adjuster lever and back-off the adjusting screw.
- Remove the brake drum.
- Inspect the brake drum and refinish or replace, as necessary. If refinishing, check the maximum inside diameter specification.
- Inspect and lubricate the bearings, as necessary. Replace the grease seal if any damage is visible.
- Clean the spindle stem and apply a thin coat of wheel bearing grease.
- Install the hub and drum assembly on the spindle.
- Install the outer bearing into the hub on the spindle.
- Install the keyed flat washer and adjusting nut. Finger tighten the nut.
- Adjust the wheel bearing (refer to Suspension & Steering of this guide). Install the nut retainer and a new cotter pin.
- Install the grease cap.
- Install the wheel(s).
- Pump brake pedal prior to moving vehicle to position brake linings.
- Road test the vehicle.
See Figure 6
- Use denatured alcohol to clean any dust, brake fluid or other contaminates from the drum.
- Visually inspect the inside surface of the drum for scratches and uneven or abnormal wear.
- Resurface the drum if the damage is minor and replace the drum if the damage is excessive.
- Measure the inside diameter of the drum with a brake drum micrometer.
- If the drum diameter exceeds 7.145 inches (181.5mm) on three door models and 8.059 inches (204.7mm) on four door models, replace the drum.