Differential Overhaul - Jeep 1979 CJ-5 Technical & Service Manual

2F-30
A X L E S
(4) Position differential assembly in housing so
bearings just start into housing bearing bores (fig. 2F-
44).
NOTE: Slightly tipping the bearing cups will ease
starting them into the bores. Also keep the differential
assembly square in the housing during installation and
push it in as far as possible.
(5) Using plastic mallet, tap outer edge of bearing
cups until differential is seated in housing.
CAUTION: Do not distort the shims by hammering
them into the housing.
(6) Install differential bearing caps. Position caps
according to alignment punch marks made at dis-
assembly. Tighten bearing cap bolts to 87 foot-pounds
(118 N«m) torque.
(7) Preloading differential bearings may change
backlash setting. Check and correct backlash if
necessary.
(8) Install propeller shaft, aligning index marks
made at disassembly.
(9) Install axle shafts, bearings, seals, and brake
support plates.
(10) Fill rear axle with Jeep Axle lubricant or Trac-
Lok Lubricant, or equivalent.
(11) Check and adjust axle shaft end play if neces-
sary. Adjust end play at left side of axle shaft only.
(12) Install hubs, drums, and wheels.
(13) Lower vehicle.
Fig. 2F-43 Checking Backlash
Fig. 2F-44 Differential Installation
DIFFERENTIAL OVERHAUL—MODEL 30-44-60 AXLE
Differential D s s a s s e i l l f
NOTE: It is not necessary to remove the axle assembly
to overhaul the differential. All differential service oper-
ations can be performed with the axle mounted in the
vehicle.
(1) Raise vehicle.
(2) Remove wheels, brake drums, and axle shafts.
(3) Remove axle housing cover (fig. 2F-45,2F-46).
(4) Mark differential bearing caps with center-
punch for assembly alignment reference.
(5) Loosen differential bearing cap bolts until only 2
or 3 threads are engaged.
(6) Install Axle Housing Spreader Tool J-24385-01.
Be sure to install holddown clamps to keep spreader tool
in position (fig. 2F-47).
(7) Mount Dial Indicator Set J-8001 on axle housing
(fig. 2F-47). Zero indicator and be sure indicator stylus
contacts one side of opening in housing.
(8) Spread housing no more than 0.020 inch (0.50
mm) using spreader tool. Measure amount housing is
spread with dial indicator.
CAUTION: Do not exceed the specified 0.020 inch (0.50
mm) when spreading the housing. If the housing is over-
spread, it could be distorted or damaged necessitating
replacement.