Dodge Dakota (R1). Manual — part 222
(6) Apply a light coating of gear lubricant on the
lip
of
pinion
seal.
Install
seal
with
Installer
C-4076–B and Handle C-4735-1 (Fig. 55).
(7) Place the proper thickness depth shim on the
pinion shaft.
(8) Install the rear bearing on the pinion (Fig. 56)
with Installer 6448 and a press.
Fig. 51 Collapsible Spacer
1 - COLLAPSIBLE SPACER
2 - SHOULDER
3 - PINION GEAR
4 - DEPTH SHIM
5 - REAR BEARING
Fig. 52 Rear Pinion Bearing
1 - PULLER
2 - VISE
3 - ADAPTERS
4 - PINION SHAFT
Fig. 53 Rear Pinion Bearing Cup
1 - INSTALLER
2 - HANDLE
Fig. 54 Front Pinion Bearing Cup
1 - INSTALLER
2 - HANDLE
3 - 106
REAR AXLE - 9 1/4
AN
PINION GEAR/RING GEAR/TONE RING (Continued)
(9) Install a new collapsible preload spacer on pin-
ion shaft and install the pinion into the housing (Fig.
57).
(10) Install
companion
flange
with
Installer
C-3718 and Holder 6719.
(11) Install bolts into two of the threaded holes in
the companion flange 180° apart.
(12) Position Holder 6719 against the companion
flange and install a bolt and washer into one of the
remaining threaded holes. Tighten the bolts so the
Holder 6719 is held to the flange.
(13) Install the companion flange washer and a
new nut on the pinion and tighten the pinion nut
until there is zero bearing end-play.
(14) Tighten the nut to 285 N·m (210 ft. lbs.) (Fig.
58).
CAUTION: Never loosen pinion nut to decrease pin-
ion bearing rotating torque and never exceed spec-
ified preload torque. If preload torque or rotating
torque is exceeded a new collapsible spacer must
be installed.
(15) Slowly tighten the nut in 6.8 N·m (5 ft. lbs.)
increments until the desired rotating torque is
achieved. Measure the rotating torque frequently to
avoid over crushing the collapsible spacer (Fig. 59).
(16) Check bearing rotating torque with an inch
pound torque wrench (Fig. 59). The torque necessary
to rotate the pinion should be:
• Original Bearings: 1 to 3 N·m (10 to 20 in. lbs.).
• New Bearings: 2 to 5 N·m (15 to 35 in. lbs.).
(17) Position exciter ring on differential case.
Fig. 55 Pinion Seal
1 - HANDLE
2 - DIFFERENTIAL HOUSING
3 - INSTALLER
Fig. 56 Rear Pinion Bearing
1 - PRESS
2 - INSTALLER
3 - PINION GEAR
4 - REAR PINION BEARING
Fig. 57 Collapsible Preload Spacer
1 - COLLAPSIBLE SPACER
2 - SHOULDER
3 - PINION GEAR
4 - DEPTH SHIM
5 - REAR BEARING
AN
REAR AXLE - 9 1/4
3 - 107
PINION GEAR/RING GEAR/TONE RING (Continued)
(18) Using a brass drift, slowly and evenly tap the
exciter ring into position.
(19) Position ring gear on the differential case and
start two ring gear bolts. This will provide case-to-
ring gear bolt hole alignment.
(20) Invert the differential case in the vise.
(21) Install new ring gear bolts and alternately
tighten to 156 N·m (115 ft. lbs.) (Fig. 60).
CAUTION: Do not reuse the bolts that held the ring
gear to the differential case. The bolts can fracture
causing extensive damage.
(22) Install differential in axle housing and verify
gear mesh and contact pattern.
(23) Install axle shafts.
(24) Install wheel and tire assemblies.
(25) Install differential cover and fill with gear
lubricant.
(26) Install propeller shaft wtih reference marks
aligned.
(27) Remove support and lower vehicle.
Fig. 58 Pinion Nut
1 - DIFFERENTIAL HOUSING
2 - HOLDER
3 - TORQUE WRENCH
Fig. 59 Pinion
1 - COMPANION FLANGE
2 - TORQUE WRENCH
Fig. 60 Ring Gear Bolts
1 - TORQUE WRENCH
2 - RING GEAR BOLTS
3 - RING GEAR
4 - DIFFERENTIAL CASE
3 - 108
REAR AXLE - 9 1/4
AN
PINION GEAR/RING GEAR/TONE RING (Continued)
REAR AXLE - 216RBI
TABLE OF CONTENTS
page
. . . . . . . . . . . . . . . . . . . . . . 1
REAR AXLE - 216RBI
TABLE OF CONTENTS
page
page
REAR AXLE - 216RBI
AXLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
AXLE SHAFTS
AXLE BEARING AND SEAL
PINION SEAL
COLLAPSIBLE SPACER
DIFFERENTIAL
DIFFERENTIAL - TRAC-LOK
DIAGNOSIS AND TESTING . . . . . . . . . . . . . . . . . 24
. . . . . . . . . . . . . . . . . . . . . . . . . . . 24
DIFFERENTIAL CASE BEARINGS
PINION GEAR/RING GEAR
REAR AXLE - 216RBI
DESCRIPTION
The Rear Beam-design Iron (RBI) axle housing has
an iron center casting (differential housing) with axle
shaft tubes extending from either side. The tubes are
pressed into and welded to the differential housing to
form a one-piece axle housing. The integral type,
hypoid gear design, housing has the centerline of the
pinion set below the centerline of the ring gear. The
axles are equipped with semi-floating axle shafts,
meaning that loads are supported by the axle shaft
and bearings. The axle shafts are retained by C-clips
in the differential side gears.
The axle has the assembly part number and gear
ratio listed on a tag. The tag is attached to the dif-
ferential housing by a cover bolt. Build date identifi-
cation codes are stamped on the cover side of an axle
shaft tube.
The differential case is a one-piece design. The dif-
ferential pinion mate shaft is retained with a roll
pin. Differential bearing preload, ring gear backlash
and Pinion bearing preload is adjusted by the use of
selective shims. The cover provides a means for ser-
vicing the differential without removing the axle. The
axle has a vent hose to relieve internal pressure
caused by lubricant vaporization and internal expan-
sion.
Axles equipped with a Trac-Lok
t differential are
optional. This differential has a one-piece differential
case, and the same internal components as a stan-
dard differential, plus two clutch disc packs.
R1
REAR AXLE - 216RBI
3a - 1
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