Chrysler RAM TRUCK 2500 1994 Service Manual page 136

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REAR SUSPENSION AND AXLE 3 - 29
(8) Mark the positions of the yoke and pinion gear
for installation alignment reference.
(9) Use Remover 7794A and slide hammer to re­
move the pinion gear seal (Fig. 8).
SPECIAL TOOL
7794A
PINION SEAL
J9402-59X
Fig. 8 Seal Removal
INSTALLATION
(1) Apply a light coating of gear lubricant on the
lip of pinion seal. Install seal Installer C-163.
(2) Align the installation reference marks and in­
stall yoke on pinion shaft with Installer C-3718 (Fig.
9).
YOKE
J9402-61
Fig. 9 Yoke Installer
(3) Install washer with concave surface against the
yoke. Install new nut on the pinion gear. Tighten
the nut only enough to remove the shaft end
play.
CAUTION: Exercise care d u r i n g t h e bearing preload
t o r q u e adjustment. Do not over-tighten, or loosen
a n d then re-tighten the n u t Do not exceed the bear­
i n g preload t o r q u e . The collapsible preload spacer
o n the pinion shaft will have t o be replaced. The
bearing preload t o r q u e will be re-adjusted after­
w a r d .
(4) Install a socket and inch-pound torque wrench
on the pinion nut.
(5) Rotate the shaft with the torque wrench and
note the torque.
The required preload is equal to amount re­
corded during removal plus 0.56 N-m (5 in. lbs.).
The used bearing preload torque must never
exceed 2.25 N-m (20 in. lbs.)
(6) Use Flange Holder 6719 to retain the yoke and
shaft (Fig. 10). Tighten the shaft nut i n very small
increments.
DIFFERENTIAL
Fig. 10 Tightening Pinion Shaft Nut
(7) Continue tightening the shaft nut i n small in­
crements until the correct bearing preload torque is
attained. Tighten the pinion shaft nut to 292 to 497
N-m (215 to 315 ft. lbs.) torque.
(8) Align the installation reference marks and at­
tach the propeller shaft to the yoke.
(9) Add gear lubricant to the differential housing i f
necessary.
(10) Install wheel and tire assemblies
(11) Remove support and lower the vehicle.
AXLE SHAFT REMOVAL/INSTALLATION
CAUTION: R A I S E BOTH R E A R W H E E L S off the sur­
face whenever a rear axle is being serviced.