- Raise the vehicle and support it with jackstands.
- Remove the hub dust cover and spindle cotter pin. Loosen the nut.
- While spinning the wheel, snug the nut down to seat the bearings. Do not exert over 12 ft. lbs. (16 Nm) of force on the nut.
- Back the nut off 1 / 4 turn or until it is just loose. Line up the cotter pin hole in the spindle with the hole in the nut.
Do not loosen the nut more than1/2turn.
- Insert a new cotter pin. End-play should be between 0.001-0.005 in. (0.03-0.13mm). If play exceeds this amount, the wheel bearings should be replaced.
Rear disc brake equipped bearings are not adjustable or serviceable. If excessive bearing noise is produced, the bearing and holder must be replaced.
REMOVAL & INSTALLATION
- Raise the car and support it with jackstands. Remove the wheel.
- Remove the dust cap, cotter pin, castle nut, thrust washer and outside wheel bearing. Pull the drum assembly from the spindle. Place the drum on a clean work surface.
- Using a suitable seal puller, pry out the inner seal. With the seal removed, lift out the inner bearing. Remove the inner races. It may be necessary to use a hammer and a brass drift to drive the bearing races from the hub.
- Clean all parts in kerosene or equivalent, DO NOT use gasoline. After cleaning, dry the parts with compressed air and check parts for excessive wear and replace damaged parts. Do NOT allow the bearings to spin while blowing dry.
- Apply a coating of grease to the inside of the hub. Install the bearing races into hub, using a hammer and a brass drift. Drive the races in until they seat against the shoulder of the hub.
- Pack the bearings with grease and install the inner bearing in the hub. Install a new grease seal, being careful not to damage the seal.
- Install the drum assembly onto the spindle. Install the outer bearing, thrust washer and castle nut. Tighten the nut until the wheel does not turn freely.
- Back off the nut until the wheel turns freely and install the cotter pin. Install the dust cap.
- Install the wheel and lower the vehicle.
See Figures 1, 2 and 3
- Raise and support the vehicle safely on jackstands.
- Remove the wheel and tire assembly.
- Disconnect the parking brake cable from the caliper or if equipped the brake shoe.
- Remove the caliper and suspend it with wire. The flexible hose does not need to be disconnected.
- Remove the caliper bracket, followed by the brake rotor.
- If equipped with Duo-Servo type brakes, remove the brake shoes.
- Loosen and remove the the bearing holder retainer nuts at the back side of the assembly.
- With all the nuts removed, slide the axle shaft and bearing holder out.
- Remove the snapring from the axle shaft and remove the axle shaft from the bearing housing.
- Remove the bearing seal from the housing. Press out the bearing and discard.
- Apply grease around the outside of the bearing assembly, and press into the bearing housing.
- Install a new seal to the bearing housing.
- Install the axle shaft into the bearing housing, and secure in place with the snapring.
- Install the axle shaft and bearing housing to the rear axle, and secure in place with the retainer nuts and bolts. Tighten the nuts to 54 ft. lbs. (74 Nm).
- If equipped with Duo-Servo brakes, install the brake shoes to the backing plate. Refer to Brakes for installation steps.
- Install the brake rotor and caliper.
- Install the parking brake cable to the brake assembly.
- Install the wheel and tire assembly, then lower the vehicle.
Proper and regular greasing of the wheel bearing can prolong the life of the bearing.
Clean the wheel bearings thoroughly with solvent and check their condition before installation.
The are several different types of inexpensive wheel bearing packing tools available at most automotive parts stores. Although they all work well. they really do not work any better than the old-fashion method of hand greasing.
To hand grease a bearing place a sizable amount of lubricant in the palm of one hand. Using your other hand, work the bearing into the lubricant so that the grease is pushed through the rollers and out the other side. Keep rotating the bearing while continuing to push the lubricant through it.