Jeep 1996 Grand Cherokee Service Manual page 98

ZJ
REMOVAL AND INSTALLATION (Continued)
AXLE SHAFT
REMOVAL
(1) Raise and support the vehicle.
(2) Remove the wheel and tire.
(3) Remove the brake drum.
(4) Clean all the foreign material from housing
cover area.
(5) Loosen the housing cover bolts. Drain the lubri-
cant from the housing and the axle shaft tubes.
Remove the housing cover.
(6) Rotate the differential case so that the pinion
mate gear shaft lock screw is accessible. Remove the
lock screw and the pinion mate gear shaft from the
case (Fig. 12).
Fig. 12 Mate Shaft Lock Screw
(7) Force the axle shaft in toward the center of the
vehicle. Remove the axle shaft C–clip lock from the
axle shaft (Fig. 13).
Fig. 13 Axle Shaft C–Clip Lock
(8) Remove the axle shaft. Use care to prevent
damage to the axle shaft bearing and seal, which will
remain in the axle shaft tube.
DIFFERENTIAL AND DRIVELINE
(9) Inspect axle shaft seal for leakage or damage.
(10) Inspect the roller bearing contact surface on
the axle shaft for signs of brinelling, galling and pit-
ting.
(11) If any of these conditions exist, the axle shaft
and bearing or seal must be replaced.
INSTALLATION
(1) Lubricate the bearing bore and seal lip with
gear lubricant. Insert the axle shaft through the seal,
bearing, and engage it with the side gear splines.
Use care to prevent the shaft splines from dam-
aging the axle shaft seal lip.
(2) Insert the C–clip lock in the end of the axle
shaft. Push the axle shaft outward to seat the C–clip
lock in the side gear.
(3) Insert the mate shaft into the case and through
the thrust washers and pinion gears. Align the hole
in shaft with the hole in the differential case and
install the lock screw with Loctite
Tighten the screw to 19 N·m (14 ft. lbs.) torque.
(4) Install the cover and add fluid. Refer to the
Drain and Refill in this section.
AXLE SHAFT SEAL AND BEARING
REMOVAL
(1) Remove the axle shaft. Refer to the Removal
procedures in this Group.
(2) Remove the axle shaft seal from the end of the
axle shaft tube with a small pry bar.
(3) Remove the bearing if it appears damaged.
The seal and bearing can be removed at the same
time with the bearing removal tool.
(4) Remove the axle shaft bearing from the tube
(Fig. 14) with Bearing Removal Tool Set 6310.
(5) Inspect the axle shaft tube bore for roughness
and burrs. Remove as necessary.
CAUTION: Inspect the housing bore for burrs.
Remove them if they exist.
INSTALLATION
Do not install the original axle shaft seal.
Always install a new seal.
(1) Wipe the bore in the axle shaft tube clean.
(2) Install axle shaft bearing with Installer 6436
and Handle C–4171. Ensure part number on the
bearing must go against the Installer.
(3) Install the new axle shaft seal (Fig. 15) with
Installer 6437 and Handle C–4171.
(4) Install the Axle Shaft. Refer to the installation
procedure.
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on the threads.