Spicer Jeep Grand Cherokee WJ 44-4 SERVICE MANUAL - Manual (Page 7)

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X5001-CVSP
18. Remove the inner pinion cup, using a Miller
tool C-4307 and handle C-4171 (Figure 17).
NOTE: Be careful not to damage the pinion cup
bore when removing the cup (Figure 18).
Figure 17
Figure 18
CAUTION DO NOT use a punch to pound
out the cup. This will damage the bore where the
cup sits, making it impossible to reseat the new
cup during installation. Eventually, poor seating
can lead to improper loading on the seal and
bearing, leading to premature axle failure.
NOTE: If the axle doesn’t have too many miles,
the axle shaft bearings may be reused. If the axle
has high mileage on it, the bearings and seals
should be replaced.
To determine if the seal and bearing should be
replaced, inspect the following. At the oil seal,
check for:
■ signs of leakage prior to teardown
■ tears in the rubber at the sealing surface
■ the garter spring in the proper location; and
■ improper installation that resulted in leakage.
At the wheel bearing, check for:
■ complaints dealing with wheel noise
■ pitting on the rollers, caused by particles rolling
through the bearing; and
■ spalling on the rollers, caused by excessive load
and poor lubrication.
If there is any doubt whether the seal or bearing
can be reused, it is best to be safe and replace
these components. Always replace the bearing and
seals on both sides of the axle.