Jeep Cherokee 2000 Service Manual - page 132
(14) Add the dial indicator reading to the starting
point shim thickness to determine total shim thick-
ness to achieve zero differential end play.
(15) Add 0.008 in. (0.2 mm) to the zero end play
total. This new total represents the thickness of
shims to compress, or preload the new bearings when
the differential is installed.
(16) Rotate dial indicator out of the way on guide
stud.
(17) Remove differential case, dummy bearings,
and starting point shims from axle housing.
(18) Install pinion gear in axle housing. Install the
yoke and establish the correct pinion rotating torque.
(19) Install differential case and dummy bearings
in axle housing (without shims) and tighten retaining
cap bolts.
(20) Position the dial indicator plunger on a flat
surface between the ring gear bolt heads (Fig. 74).
(21) Push and hold differential case toward pinion
gear.
(22) Zero dial indicator face to pointer.
(23) Push and hold differential case to ring gear
side of the axle housing.
(24) Record dial indicator reading.
(25) Subtract 0.002 in. (0.05 mm) from the dial
indicator reading to compensate for backlash between
ring and pinion gears. This total is the thickness of
shim required to achieve proper backlash.
(26) Subtract the backlash shim thickness from
the total preload shim thickness. The remainder is
the shim thickness required on the pinion side of the
axle housing.
(27) Rotate dial indicator out of the way on guide
stud.
(28) Remove differential case and dummy bearings
from axle housing.
(29) Install new side bearing cones and cups on
differential case.
(30) Install spreader W-129-B, utilizing some com-
ponents of Adapter Set 6987, on axle housing and
spread axle opening enough to receive differential
case.
(31) Place side bearing shims in axle housing
against axle tubes.
(32) Install differential case in axle housing.
(33) Rotate the differential case several times to
seat the side bearings.
(34) Position the indicator plunger against a ring
gear tooth (Fig. 77).
(35) Push and hold ring gear upward while not
allowing the pinion gear to rotate.
(36) Zero dial indicator face to pointer.
(37) Push and hold ring gear downward while not
allowing the pinion gear to rotate. Dial indicator
reading should be between 0.12 mm (0.005 in.) and
0.20 mm (0.008 in.). If backlash is not within specifi-
cations transfer the necessary amount of shim thick-
ness from one side of the differential housing to the
other (Fig. 78).
Fig. 76 Hold Differential Case and Read Dial
Indicator
1 – READ DIAL INDICATOR
2 – FORCE DIFFERENTIAL CASE TO RING GEAR SIDE
3 – AXLE HOUSING
3 - 96
194 RBI AXLE
XJ
ADJUSTMENTS (Continued)