Jeep 1997 Grand Cherokee Service Manual page 84

SPECIAL TOOL C-3972–A
OIL SLINGER REAR BEAR- SPECIAL TOOL ING C-4171
3 - 26 DIFFERENTIAL AND DRIVELINE
REMOVAL AND INSTALLATION (Continued)
Fig. 19 Collapsible Preload Spacer
Fig. 20 Pinion Seal Installation
(6) If the original pinion bearings are being used,
install differential assembly and axle shafts, if neces-
sary.
NOTE: If new pinion bearings were installed, do not
install the differential assembly and axle shafts until
after the pinion bearing preload and rotating torque
are set.
(7) Install the pinion washer and a new nut on the
pinion gear. Tighten the nut to 217 N·m (160 ft. lbs.)
minimum. Do not over–tighten. Maximum torque
is 353 N·m (260 ft. lbs.).
CAUTION: Never loosen
decrease pinion gear bearing rotating torque and
IBLE SPACER COLLAPS- SHOULDER PINION GEAR
pinion gear nut to
AXLE HOUSING
PINION YOKE TOOL 6958
Fig. 21 Pinion Yoke Installation
never exceed specified preload torque. If preload
torque is exceeded a new collapsible spacer must
be installed. The torque sequence will then have to
be repeated.
NOTE: If the spacer requires more than 353 N·m
(260 ft. lbs.) of torque to crush, the collapsible
spacer is defective and must be replaced.
(8) Using yoke holder 6958, a short length of 1 in.
pipe, and a torque wrench set at 353 N·m (260 ft.
lbs.), crush collapsible spacer until bearing end play
is taken up (Fig. 22).
Fig. 22 Tightening Pinion Nut
PINION FLANGE FRONTAXLE
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