Chrysler RAM TRUCK 2500 1994 Service Manual page 81

2 - 24 FRONT SUSPENSION AND AXLE
SEALING CONTOUR OF BEAD
Fig. 1 Typical Housing Cower With Sealant
• Model 44: 41 N-m (30 ft. lbs.) torque.
• Model 60: 47 N-m (35 ft. lbs.) torque.
(8) Refill the differential with MOPAR® Hypoid
Gear Lubricant within 13 mm (1/2 in.) below the fill
plug hole.
CAUTION: Do not over fill differential. Overfilling
can result in lubricant foaming and overheating.
(9) Install the fill hole plug and lower the vehicle.
PINION SEAL REPLACEMENT
REMOVAL
(1) Raise and support the vehicle.
(2) Remove wheel and tire assemblies
(3) Mark the propeller shaft yoke and pinion yoke
for installation alignment reference.
(4) Remove the propeller shaft from the yoke.
(5) Rotate the pinion gear three or four times.
Make sure brakes are not dragging during this
procedure.
(6) Measure the amount of torque necessary to ro­
tate the pinion gear with a torque wrench. Note the
torque for installation reference. It must be known
to properly adjust the pinion gear bearing pre­
load torque after seal installation.
(7) Remove the pinion yoke nut and washer. Use
Remover C-452 and Holder C-3281 to remove the
pinion yoke (Fig. 2).
(8) Mark the positions of the yoke and pinion gear
for installation alignment reference.
(9) Use Remover 7797A and slide hammer to re­
move the pinion gear seal (Fig. 3).
C-452 J9102-31
Fig. 2 Pinion Yoke Remowal
SPECIAL TOOL
7797k
PINION SEAL
J9402-59
Fig. 3 Seal Remowal
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 W-162D for
model 44 axle. Use Installer C-3718 for model 60
axle. (Fig. 4).
(3) Install a new nut on the pinion gear. Tighten
the nut only enough to remove the shaft end
play.
CAUTION: Exercise care during the bearing preload
torque adjustment. Do not over-tighten, or loosen
and then re-tighten the nut. Do not exceed the bear­
ing preload torque. The collapsible preload spacer
on the pinion shaft will have to be replaced. The
bearing preload torque will be re-adjusted after­
ward.
(4) Install a socket and inch-pound torque wrench
on the pinion nut.