Dodge ram truck 3500 1996 Service Manual page 96

3 - 30 DIFFERENTIAL AND DRIVELINE
B R
R E M O V A L A N D I N S T A L L A T I O N ( C o n t i n u e d )
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
bearing preload torque. The collapsible preload
spacer on the 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.
(5) Rotate the shaft with the torque wrench and
note the torque (Fig. 22).
The required preload torque is equal to the
amount recorded d u r i n g removal plus a n addi­
tional 0.56 N-m (5 i n . lbs.).
J9303-10
Fig. 22 Check Pinion Rotation Torque
(6) Use Flange Wrench 6719 to retain the yoke
and shaft (Fig. 23). Tighten the shaft nut in very
small increments.
(7) Continue tightening the shaft nut in small
increments until the correct bearing rotation preload
torque is attained.
(8) Align the installation reference marks and
attach the drive shaft to the yoke.
(9) Add API grade GL 5 hypoid gear lubricant to
the differential housing, i f necessary.
(10) Install wheel and tire assemblies.
(11) Lower the vehicle.
PINION
FLANGE
HOLDING TOOL
6719
Fig. 23 Tightening Pinion Shaft Nut
DIFFERENTIAL
REMOVAL
To service the differential the axle shafts must be
removed. Refer to the removal procedures in this
Group.
(1) Note the installation reference letters stamped
on the bearing caps and housing machined sealing
surface (Fig. 24).
INSTALLATION
REFERENCE LETTERS
J9G03-92
Fig. 24 Bearing Cap identification
(2) Remove the differential bearing caps.
(3) Position Spreader W-129-B with the tool dowel
pins seated i n the locating holes (Fig. 25). Install the
hold down clamps and tighten the tool turnbuckle
linger-tight.
(4) Install a pilot stud at the left side of the differ­
ential housing. Attach Dial Indicator to housing pilot
stud. Load the indicator plunger against the opposite
side of the housing (Fig. 25) and zero the indicator.