1998 DODGE RAM 1500 Washer

(8)Install retainer ring with ring end in the key slot.
(9) Install new axle shaft gasket and install axle
shaft.
PINION SEAL
REMOVAL
(1) Remove axle shafts.
(2) Mark propeller shaft and pinion flange for
installation reference and remove shaft.
(3) Rotate pinion gear three or four times.
(4) Measure and record the amount of torque nec-
essary to rotate the pinion gear with an inch pound
torque wrench (Fig. 22).(5) Hold pinion flange with Flange Wrench 8979
(Fig. 23) and remove pinion flange nut and washer.
(6) Remove pinion flange with Pinion Flange
Puller 8992 (Fig. 24).
(7) Remove pinion shaft seal with a pry tool or
slide hammer mounted screw.
INSTALLATION
(1) Installnewpinion seal with Installer 8896 and
Handle C-4171 (Fig. 25).
(2) Apply a light coat of teflon sealant to the pin-
ion flange splines.
(3) Lightly tap the pinion flange onto the pinion
until a few threads are showing.
(4) Install flange washer andnewpinion nut.
Fig. 21 HUB NUT SOCKET
1 - SOCKET
2 - TORQUE WRENCH
Fig. 22 PINION ROTATING TORQUE
1 - PINION FLANGE
2 - TORQUE WRENCH
Fig. 23 FLANGE WRENCH
1 - PINION FLANGE
2 - FLANGE WRENCH
Fig. 24 PINION FLANGE PULLER
1 - PINION FLANGE
2 - PULLER
3 - 126 REAR AXLE - 10 1/2 AADR
AXLE BEARINGS (Continued)

DISASSEMBLY
(1) Remove pinion shaft with a hammer and punch
from the side with the hole in the pinion shaft (Fig.
29).
(2) Rotate one pinion gear with thrust washer
(Fig. 30) to the differential window and remove the
gear.(3) Rotate the other pinion gear with thrust
washer (Fig. 31) to the differential window and
remove the gear.
(4) Remove differential side gears and thrust
washers (Fig. 32).
Fig. 28 BEARING ADJUSTERS
1 - BEARING CUP
2 - ADJUSTER
3 - BEARING CUP
4 - ADJUSTER
Fig. 29 PINION SHAFT
1 - PINION GEAR
2 - PINION SHAFT
3 - RING GEAR
4 - EXCITER RING
Fig. 30 FRIST PINION GEAR
1 - DIFFERNTIAL CASE WINDOW
2 - PINION GEAR
3 - THRUST WASHER
Fig. 31 SECOND PINION GEAR
1 - DIFFERENTIAL WINDOW
2 - THRUST WASHER
3 - PINION GEAR
3 - 128 REAR AXLE - 10 1/2 AADR
DIFFERENTIAL (Continued)

ASSEMBLY
NOTE: If the same gears and thrust washers are
being used, install them into their orignial locations.
(1) Lubricate all differential components with axle
lubricant.
(2) Install differential side gears and thrust wash-
ers (Fig. 33).
(3) Install first pinion gear into the differential
window and side gears. Rotate the pinion gear to the
back of the case (Fig. 34).(4) Install the other pinion gear and thrust
washer. Rotate the gears to align hole in the pinion
gears with hole in the differential case.
(5) Slide pinion shaft into the case and through
the pinion gears. Tap the shaft to seat the pinion
shaft snap-ring into the case (Fig. 35).
Fig. 32 SIDE GEARS
1 - SIDE GEAR
2 - SIDE GEAR
3 - PINION GEARS
Fig. 33 SIDE GEAR
1 - DIFFERENTIAL WINDOW
2 - SIDE GEAR
Fig. 34 PINION GEAR
1 - DIFFERENTIAL WINDOW
2 - SIDE GEARS
3 - PINION GEAR
Fig. 35 PINION SHAFT INSTALLATION
1 - PINION SHAFT SNAP-RING
2 - SIDE GEAR
3 - PINION GEAR
4 - PINION SHAFT
DRREAR AXLE - 10 1/2 AA 3 - 129
DIFFERENTIAL (Continued)

DIFFERENTIAL TRAC-RITE
DESCRIPTION
The Trac-RiteŸ differential is a helical gear differ-
ential. The differential has two side gears, six pinion
gears and six pinion brake shoes.
NOTE: The differential is seviced as an assembly
only if damaged, but can be disassembled for
cleaning. The assembly should be cleaned every
time a bearing is changed due to damage.
OPERATION
When one wheel begins to spin the pinion gears on
that side are forced toward the pinion brake shoes.
The pinion brake shoes then cause frictional drag on
the opposite pinion gears and the side gear. These
friction forces transfer the power to the opposite
wheel. Once the frictional forces are overcome, differ-
entiation will occur. The torque will be continually
biased by the frictional forces to the high traction
wheel.
DISASSEMBLY
(1) Remove differential ring gear bolts.
(2) Remove differential case cover locating screws
(Fig. 38).
(3) Remove differential case cover.(4) Remove side gear and thrust washer (Fig. 39).
NOTE: Mark all component locations.
(5) Remove three pinion brake shoes (Fig. 40).
Fig. 38 LOCATION SCREWS
1 - DIFFERENTIAL COVER
2 - LOCATION SCREWS
Fig. 39 SIDE GEAR AND THRUST WASHER
1 - SIDE GEAR
2 - THRUST WASHER
Fig. 40 PINION BRAKE SHOES
1 - BRAKE SHOES
2 - PINION GEARS
DRREAR AXLE - 10 1/2 AA 3 - 131

(6) Remove six pinion gears (Fig. 41).
(7) Remove remaining side gear thrust washer and
spacer.
(8) Remove remaining three pinion brake shoes.
CLEANING
Clean the differential case and gears with light oil
or a lint free cloth.
NOTE: Never use water, steam, kerosene or gaso-
line for cleaning.
INSPECTION
NOTE: Minor corrosion, nicks or scratches can be
smoothed with 400 grit emery cloth and polished
out with crocus cloth.
(1) Inspect pinion gears teeth for chips and cracks
(Fig. 42).
(2) Inspect pinion gears shafts and brake shoes for
scratches, flat-spots or worn (Fig. 42).(3) Inspect side gears teeth for chips and cracks
(Fig. 43).
(4) Inspect pinion and side gear bores for scratches
(Fig. 44).
NOTE: If any damage is found the differential must
be replaced as an assembly. Individual components
can not be replaced separately.
Fig. 41 PINION GEARS
1 - PINION GEARS
2 - SIDE GEAR
Fig. 42 PINION GEAR AND BRAKE SHOE
1 - BRAKE SHOES
2 - PINION GEAR
3 - PINION SHAFT
Fig. 43 SIDE GEARS
1 - THRUST WASHERS
2 - SPACER
3 - SIDE GEARS
3 - 132 REAR AXLE - 10 1/2 AADR
DIFFERENTIAL TRAC-RITE (Continued)

ASSEMBLY
NOTE: Install all component in their original loca-
tions.
(1) Lubricate all gears and differential bores with
differential lubricant.
(2) Install one set of pinion brake shoes into the
case bores.
NOTE: Brake shoes can be installed upside down,
but if install wrong pinion gear will not fit.
(3) Install side gear thrust washer, side gear and
spacer (Fig. 45).
(4) Install one set of pinion gears into the bores
next to the brake shoes, with the pinion shaft facing
up.
(5) Install other side gear and thrust washer.
(6) Install other set of pinion gears into the brake
shoes in the case.
(7) Install other set of brake shoes onto the pinion
gears shafts (Fig. 46).
(8) Install differential cover and location screws.
(9) Installnewring gear bolts and tighten to 237
N´m (175 ft. lbs.).
Fig. 44 PINION/SIDE GEAR BORE
1 - PINION BORES
2 - SIDE GEAR BORE
Fig. 45 SIDE GEAR AND SPACER
1 - SPACER
2 - SIDE SPACER
Fig. 46 PINION BRAKE SHOES
1 - BRAKE SHOES
2 - PINION GEARS
DRREAR AXLE - 10 1/2 AA 3 - 133
DIFFERENTIAL TRAC-RITE (Continued)

(4) Place differential on Plug 8888 and drive
exciter ring off the differential case with a hammer
and punch (Fig. 49).
NOTE: Do not remove the exciter ring if it is not
being replaced.
(5) Place differential case in a vise with soft metal
jaw protectors
(6) Remove bolts holding ring gear to differential
case.
(7) Drive ring gear from differential case with a
soft hammer (Fig. 50).
(8) Hold pinion flange with Flange Wrench 8979
(Fig. 51) and remove pinion flnage nut and washer.
Fig. 49 EXCITER RING
1 - DIFFERENTIAL CASE
2 - RING GEAR
3 - PUNCH
4 - EXCITER RING
Fig. 50 RING GEAR
1 - DIFFERENTIAL CASE
2 - RING GEAR
3 - HAMMER
Fig. 51 FLANGE WRENCH
1 - PINION FLANGE
2 - FLANGE WRENCH
DRREAR AXLE - 10 1/2 AA 3 - 135
PINION GEAR/RING GEAR/TONE RING (Continued)

(5) Installnewcollapsible spacer (Fig. 59).
(6) Lubricate pinion and bearings.
(7) Install pinion into the housing and place front
pinion bearing onto the pinion shaft. Draw the pinion
shaft into the front bearing with Installer 8981 (Fig.
60).(8) Installnewpinion seal (Fig. 61) with Installer
8896 and Handle C-4171.
(9) Apply a light coat of teflon sealant to the pin-
ion flange splines.
(10) Hold the pinion and lightly tap the pinion
flange onto the pinion, until a few threads are show-
ing.
(11) Install pinion flange washer andnewpinion
nut.
(12) Hold pinion flange with Flange Wrench 8979
(Fig. 62) and tighten pinion nut until pinion end play
is taken up.
Fig. 59 COLLAPSIBLE SPACER
1 - COLAPSIBLE SPACER
2 - PINION GEAR
3 - REAR PINION BEARING
Fig. 60 PINION GEAR INSTALLER
1 - INSTALLER
2 - DIFFERENTIAL HOUSING
Fig. 61 PINION SEAL INSTALLER
1 - HANDLE
2 - INSTALLER
Fig. 62 FLANGE WRENCH
1 - FLANGE WRENCH
2 - PINION FLANGE
3 - 138 REAR AXLE - 10 1/2 AADR
PINION GEAR/RING GEAR/TONE RING (Continued)