REMOVAL & INSTALLATION
See Figures 1 through 8
This service procedure requires the use of expensive special tools (machine shop press and an oil bath). It is best to remove the axle shaft, then send it out to a machine shop to replace the axle bearing assembly.
- Disconnect the negative battery cable.
- Raise and safely support the vehicle.
- Remove the wheel cover, unfasten the lug nuts, then remove the wheel.
- Remove the brake drum.
- Remove the backing plate attachment nuts through the access holes in the rear axle shaft flange.
- Use SST 09520-00031 or an equivalent slide hammer puller to withdraw the axle shaft from it's housing. Use care not to damage the oil seal when removing the axle shaft.
- Disconnect the brake line, then remove the brake backing plate. Remove the end gasket from the axle housing.
- Grind the axle bearing inner retainer, then cut it off using a hammer and chisel. Be careful not to damage the axle shaft by grinding through the retainer.
- Using SST 09527-20011 or an equivalent bearing support plate, press the bearing off the axle shaft.
- Position the bearing outer retainer and a new bearing onto the shaft. Using SST 09515-20010 or it's equivalent, press the bearing to the correct location.
- Heat the inner bearing retainer to about 302°F (150°C) in an oil bath. Press the inner retainer onto the axle shaft. Face the non-beveled side of the inner retainer toward the bearing.
- Remove the oil seal from the axle housing using SST 09308-00010 or an equivalent oil seal puller.
- Install the oil seal in the axle housing housing. Drive the oil seal into the axle housing to a depth of 0.220 in. (5.6mm) using SST 09517-12010 or an equivalent seal driver.
- Clean the flange of the axle housing and backing plate. Apply sealer to the end gasket and retainer gasket as necessary.
- Place new end and retainer gaskets in position. Face the notch of gasket downward.
- Install the backing plate to the axle housing and all necessary components.
- Insert the axle shaft straight in, not at an angle. Be careful not to damage the oil seal and/or oil deflector inside the axle housing. Secure the rear axle shaft with new self-locking nuts. Torque them to 48 ft. lbs. (66 Nm).
- Install the brake drum and wheel.
- Bleed the brake system, then road test for proper operation.