Jeep 1997 Grand Cherokee Service Manual page 94

AXLE HOUSING
OIL SLINGER REAR BEAR- PINION YOKE ING
3 - 36 DIFFERENTIAL AND DRIVELINE
REMOVAL AND INSTALLATION (Continued)
Fig. 51 Collapsible Preload Spacer
Fig. 52 Pinion Yoke Installation
NOTE: If the spacer requires more than 352 N·m
(260 ft. lbs.) of torque to crush, the collapsible
spacer is defective.
(10) Using Holder 6958, a short length of 1 in.
pipe, and torque wrench (set at 352 N·m (260 ft.
lbs.)), crush collapsible spacer until bearing end play
is taken up (Fig. 53).
(11) Slowly tighten the nut in 6.8 N·m (5 ft. lb.)
increments until the rotating torque is achieved.
Measure the rotating torque frequently to avoid over
crushing the collapsible spacer (Fig. 54).
(12) Check bearing rotating torque with an inch
pound torque wrench (Fig. 54). The torque necessary
to rotate the pinion gear should be:
IBLE SPACER COLLAPS- SHOULDER PINION GEAR in. lbs. TORQUE WRENCH
• Original Bearings — 1 to 3 N·m (10 to 20 in.
lbs.).
• New Bearings — 2 to 5 N·m (15 to 35 in. lbs.).
Fig. 54 Check Pinion Gear Rotation Torque
(13) Install differential assembly.
RING GEAR
The ring and pinion gears are service in a matched
set. Do not replace the ring gear without replacing
the pinion gear.
PINION YOKE
TOOL 6958
Fig. 53 Tightening Pinion Nut
PINION FLANGE FRONTAXLE
ZG