This procedure applies to front wheel drive models. For rear axle bearing procedures on four wheel drive models, please refer to Drive Train .
REMOVAL & INSTALLATION
See Figures 1 through 11
- Disconnect the negative battery cable.
- Raise the rear of the vehicle, then support it with jackstands. Remove the wheel.
- Remove the grease cap, cotter pin, lock cap and nut. Remove the axle hub together with the outer bearing, thrust washer and brake drum.
- Using a small prybar, pry out the oil seal from the back of the hub, then remove the inner bearing. Remove the races (note depth for correct installation) by driving them out with a hammer and brass drift.
- Carefully press the new races into the hub using a press and the appropriate SST. On 1984-86 sedans, use SST 09608-16011 and 09608-20012 or their equivalent. On 1991-94 sedans, use SST 09608-30012 and 09550-10012 or their equivalent.
- Place some wheel bearing grease onto the palm of your hand, then take one bearing at a time and work the grease into it until it begins to ooze out the other side. Coat the inside of the axle hub and bearing cap with the same grease.
- Install the inner bearing, then install a new oil seal using a seal driver.
- Place the axle hub and outer bearing on the axle shaft. Fill the space between the outer bearing and washer with wheel bearing grease, then install the washer and nut.
- Tighten the nut to 22 ft. lbs. (29 Nm). Seat the bearing by turning the hub several times. Loosen the nut until it can be turned by hand, then confirm that there is no brake drag.
- Measure and make note of the rotation frictional force of the oil seal using spring scale.
- Tighten the adjusting nut until the correct preload is obtained. On 1984-90 sedans, preload should equal 0.9-2.2 lbs. (3.9-9.8 N) in addition to rotation frictional force of the oil seal. On 1991-94 sedans, preload should equal 0-2.6 lbs. (0-11.8 N) in addition to the rotation frictional force of the oil seal.
- Insure that the hub rotates smoothly. Use a new cotter pin when installing the lock cap.
- Install all necessary components as required.
See Figures 12 through 19
- Raise and safely support the vehicle. Remove the wheel.
- Remove the brake drum.
- Remove the bolts holding the hub to the axle carrier, then remove the hub. These bolts can be accessed through the hole in the hub flange.
- Clamp the hub in a vise. Do not overtighten and use protective jaws to prevent damage to the hub flange.
- Using a hammer and chisel. remove the stake on the nut. Remove the nut.
- Using SST 09950-20016 or its equivalent, separate the axle shaft and hub. Remove the inside bearing inner race.
- Using the same SST, pull off the outside bearing inner race from the axle shaft. Remove the oil seal.
- Install the inner race of the removed bearing. Using SST 09636-20010 or its equivalent, press out the bearing.
- Apply multi-purpose grease around the bearing outer race.
- Using SST 09316-60010 or its equivalent, press in a new bearing.
- Using a seal driver, install a new oil seal. Apply multi-purpose grease to the oil seal lip.
- Install the inner race of both bearings. Using SST 09636-20010 or its equivalent, press the assembly onto the axle shaft.
- Thread a new nut onto the shaft, then torque it to 90 ft. lbs. (123 Nm). Stake the nut with a hammer and chisel.
- Install a new O-ring onto the hub, then install the assembly to the axle carrier. Torque the bolts to 59 ft. lbs. (80 Nm).
- Install the brake drum and rear wheel. Check for proper operation.