Jeep cherokee 2000 Service Manual page 71

XJ
REMOVAL AND INSTALLATION (Continued)
Fig. 32 Differential Case Removal
1 – AXLE HOUSING
2 – DIFFERENTIAL CASE
3 – BEARING CUPS
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. 33). Install the
holddown clamps and tighten the tool turnbuckle fin-
ger–tight.
(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. 30) 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. 31).
(4) Remove the dial indicator.
(5) Install differential case, and the differential
preload shims for the 181FBI axles, in the housing.
Ensure that the differential bearing cups remain in
position on the differential bearings. Tap the differ-
ential case to ensure the bearings cups are fully
seated in the housing.
(6) Install the bearing caps at their original loca-
tions (Fig. 34).
(7) Loosely install differential bearing cap bolts.
TUBE, 181, AND 186 FBI AXLE
Fig. 33 Install Axle Housing Spreader
1 – AXLE HOUSING
2 – DOWEL
3 – SAFETY HOLD DOWN
4 – SPECIAL TOOL
W-129–B
5 – TURNBUCKLE
Fig. 34 Differential Bearing Cap Reference Letters
1 – INSTALLATION REFERENCE LETTERS
2 – INSTALLATION REFERENCE LETTERS
(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.
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