Power Train Disassembly & Assembly
4. Use the correct oil seal driver to install the wheel
hub oil seal (26). Press the seal into the hub until
the standout from the hub machined face is 0.34
inch (8.64 mm).
5. Apply a light film of axle lubricant to the hub oil
seal (26) rubber ribs in the oil seal bore.
6. Install the wheel hub, inner bearing and oil seal
assembly onto the spindle (29). Keep the hub
assembly aligned with the spindle.
7. Apply axle lubricant to the outer bearing cone (18)
rollers. Install the outer bearing cone into the
wheel hub (23).
8. Install the wheel bearing adjusting nut (17). The
dowel pin in the nut must face OUTWARD.
Adjust the wheel Bearing Preload
NOTE : To adjust the wheel bearing preload, the
bearings must be seated and the rollers in proper
alignment.
Use a brass or leather mallet for assembly and
disassembly procedures. Do not hit steel parts
with a steel hammer. Pieces of a part can break off
and cause serious personal injury.
1. Install the wheel bearing adjusting nut (17).
Tighten the nut 400 lb•ft (542 N•m).
2. Rotate the hub (23) in both directions. At the same
time, rap the hub several times with a brass or
plastic mallet.
3. Tighten the nut to 400 lb•ft (542 N•m) again.
4. Back off the nut approximately 1/4 turn to relieve
the preload produced in Step 3.
5. Tighten the nut to 200 lb•ft (271 N•m).
Do not back-off the adjusting nut. The adjusting
nut dowel pin must be carefully aligned within a
ring gear tooth spline to avoid damage to the pin.
A damaged dowel pin will cause the adjusting nut
to back-off and loosen a wheel during vehicle
operation. This can result in serious personal
injury.
6. Carefully align the adjusting nut dowel pin (16)
within a ring gear (15) tooth spline to avoid
damage to the dowel pin. Tighten the adjusting nut
to produce the proper alignment. Do not back-off
the adjusting nut.
7. Install the planetary ring gear (15) onto the spindle
(29). The dowel pin in the adjusting nut (17) must
engage the hole in the ring gear face to allow the
ring gear to seat against the adjusting nut.
8. Apply a thin layer of axle grease to the face of the
sun gear thrust washer (14).
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