Jeep 1997 Grand Cherokee Service Manual page 89

SPECIAL TOOL W-129–B
BEARING CUPS
DIFFERENTIAL CASE
AXLE HOUSING SPECIAL TOOL C-3339
ZG
REMOVAL AND INSTALLATION (Continued)
Fig. 33 Spread Axle Housing
Fig. 34 Differential Case Removal
(13) Mark or tag the differential bearing cups to
indicate which side of the differential they were
removed from.
(14) Remove spreader from housing.
INSTALLATION
If replacement differential bearings or differential
case are being installed, differential side bearing
shim requirements may change. Refer to the Differ-
ential Bearing Preload and Gear Backlash proce-
dures in this section to determine the proper shim
selection.
(1) Position Spreader W-129-B, utilizing some
items from Adapter Kit 6987, with the tool dowel
pins seated in the locating holes (Fig. 35). Install the
SAFETY HOLD DOWN
DOWEL
AXLE HOUSING
DIFFERENTIAL AND DRIVELINE
holddown clamps and tighten the tool turnbuckle fin-
ger–tight.
Fig. 35 Install Axle Housing Spreader
(2) Install a Guide Pin C-3288-B at the left side of
the differential housing. Attach Dial Indicator C-3339
to guide pin. Load the lever adapter against the
opposite side of the housing (Fig. 32) and zero the
indicator.
CAUTION: Do not spread over 0.50 mm (0.020 in). If
the housing is over-spread, it could be distorted or
damaged.
(3) Spread the housing enough to install the case
in the housing. Measure the distance with the dial
indicator (Fig. 33).
(4) Remove the dial indicator.
(5) Install differential case in the housing. Ensure
that the differential bearing cups remain in position
on the differential bearings. Tap the differential case
to ensure the bearings cups are fully seated in the
housing.
(6) Install the bearing caps at their original loca-
tions (Fig. 36).
(7) Loosely install differential bearing cap bolts.
(8) Remove axle housing spreader.
(9) Tighten the bearing cap bolts to 61 N·m (45 ft.
lbs.) torque.
(10) Install the hub bearings and axle shafts.
DIFFERENTIAL SIDE BEARINGS
REMOVAL
(1) Remove differential case from axle housing.
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