Jeep 1996 Grand Cherokee Service Manual - page 1497
Measure the rotating torque frequently to avoid over
crushing the collapsible spacer (Fig. 21).
(9) Check rotating torque with an inch pound
torque wrench (Fig. 21). The torque necessary to
rotate the pinion gear should be:
• Original Bearings — The reading recorded dur-
ing removal, plus an additional 0.56 N·m (5 in. lbs.).
• New Bearings — 2 to 5 N·m (15 to 35 in. lbs.).
(10) Install differential assembly and axle shafts,
if necessary.
(11) Align marks made previously on yoke and pro-
peller shaft and install propeller shaft.
(12) Install rear brake rotors and calipers. Refer to
Group 5 Brakes, for proper procedures.
(13) Add gear lubricant, if necessary. Refer to
Lubricant Specifications of this section for lubricant
requirements.
(14) Install wheel and tire assemblies.
(15) Lower vehicle.
AXLE SHAFT
REMOVAL
(1) Raise and support vehicle. Ensure that the
transmission is in neutral.
(2) Remove rear wheel and tire.
(3) Remove brake caliper and rotor. Refer to Group
5, Brakes, for proper procedure.
(4) Clean all foreign material from housing cover
area.
(5) Loosen housing cover bolts. Drain lubricant
from the housing and axle shaft tubes. Remove hous-
ing cover.
(6) Rotate differential case so that pinion mate
gear shaft lock screw is accessible. Remove lock
screw and pinion mate gear shaft from differential
case (Fig. 22).
(7) Push axle shaft inward and remove axle shaft
C–clip lock from the axle shaft (Fig. 23).
(8) Remove axle shaft. Use care to prevent damage
to axle shaft bearing and seal, which will remain in
axle shaft tube.
(9) Inspect axle shaft seal for leakage or damage.
(10) Inspect roller bearing contact surface on axle
shaft for signs of brinelling, galling and pitting. If
any of these conditions exist, the axle shaft and/or
bearing and seal must be replaced.
INSTALLATION
(1) Lubricate bearing bore and seal lip with gear
lubricant. Insert axle shaft through seal, bearing,
and engage it into side gear splines. Use care to
Fig. 20 Tightening Pinion Nut
Fig. 21 Check Pinion Gear Rotation Torque
Fig. 22 Mate Shaft Lock Screw
3 - 12
DIFFERENTIAL AND DRIVELINE
ZJ
REMOVAL AND INSTALLATION (Continued)