Jeep XJ. Manual — part 809
(3) Install new pickup tube O-ring in oil pump
(Fig. 63).
(4) Insert oil pickup tube in oil pump inlet.
(5) Position assembled oil pump and pickup tube
in rear case. Be sure pickup screen is securely seated
in case slot. Also be sure oil pump locating tabs are
outside rear case (Fig. 64).
(6) Apply 3 mm (1/8 in.) wide bead of Mopar
t gas-
ket maker or silicone adhesive sealer to mounting
flange of front case. Work sealer bead around bolt
holes.
(7) Lift rear case and oil pump and carefully posi-
tion assembly on front case. Be sure case dowels are
aligned and that mode fork rail extends through rear
case before seating rear case on front case.
(8) Install case attaching bolts. Alignment bolts at
each end of case are only ones requiring washers
(Fig. 65).
(9) Tighten case bolts to 27-34 N·m (20-25 ft. lbs.)
torque.
YOKE AND RANGE LEVER
(1) Install indicator switch in front case. Tighten
switch to 20-34 N·m (15-25 ft. lbs.) torque.
(2) Install range lever, washer and locknut on sec-
tor shaft (Fig. 66). Tighten locknut to 27-34 N·m
(20-25 ft. lbs.) torque.
(3) Install new seal washer on front output shaft
(Fig. 68).
(4) Lubricate yoke hub with transmission fluid and
install yoke on front shaft.
(5) Install new seal washer on front shaft.
(6) Install yoke and new yoke nut on front output
shaft (Fig. 67).
(7) Tighten yoke nut to 122-176 N·m (90-130 ft.
lbs.) torque. Use Tool C-3281, or similar tool to hold
yoke while tightening yoke nut.
Fig. 62 Installing Case Magnet
1 - MAGNET
Fig. 63 Pickup Tube O-Ring Position
1 - OIL PUMP
2 - O-RING
Fig. 64 Oil Pump And Pickup Tube Installation
1 - OIL PUMP
2 - PICKUP TUBE
3 - PICKUP SCREEN AND CONNECTOR
Fig. 65 Alignment Bolt Location
1 - ALIGNMENT BOLT AND WASHER (AT EACH END OF CASE)
21s - 58
TRANSFER CASE NV-231
XJ
TRANSFER CASE NV-231 (Continued)
2001 JEEP CHEROKEE
REAR RETAINER
(1) Apply bead of Mopar
t Sealer P/N 82300234, or
Loctite™ Ultra Gray, to mating surface of rear
retainer. Sealer bead should be a maximum of 3/16
inch.
(2) Install rear retainer on rear case. Tighten
retainer bolts to 20-27 N·m (15-20 ft. lbs.) torque.
(3) Install rear bearing I.D. retaining ring and
spacer on output shaft.
(4) Apply liberal quantity of petroleum jelly to new
rear seal and to output shaft. Petroleum jelly is
needed to protect seal lips during installation.
(5) Slide seal onto Seal Protector 6992 (Fig. 69).
Slide seal protector and seal onto output shaft.
(6) Slide Installer C-4076-B onto seal protector
with the recessed side of the tool toward the seal.
Drive seal into rear bearing retainer with Installer
C-4076-B and Handle MD-998323 (Fig. 70).
(7) Install a new output shaft rear slinger with
Installer 8408, if the vehicle is equipped with an
automatic transmission.
(8) If the vehicle is equipped with a manual trans-
mission, install the output shaft damper as follows:
(a) Position the damper weight on the output
shaft. Start the damper onto the output shaft
chamfer, being careful to keep the weight square to
the output shaft. (Fig. 71)
(b) Position the driver portion of Installer 8422
(Fig. 72) onto the damper, making sure the legs of
the damper are positioned through the slots of the
damper.
(c) Thread the puller screw of Installer 8422 into
the output shaft by hand only. Make sure the
screw is fully threaded into the output shaft.
Fig. 66 Range Lever Installation
1 - RANGE LEVER
2 - WASHER
3 - LOCKNUT
Fig. 67 Output Shaft Yoke Installation
1 - OUTPUT SHAFT YOKE
2 - YOKE NUT
Fig. 68 Yoke Seal Washer Installation
1 - YOKE SEAL WASHER
Fig. 69 Output Shaft Seal and Protector
1 - OUTPUT SHAFT SEAL
2 - SPECIAL TOOL 6992
3 - TRANSFER CASE
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TRANSFER CASE NV-231
21s - 59
TRANSFER CASE NV-231 (Continued)
2001 JEEP CHEROKEE
(d) Using a wrench to hold the pulling screw sta-
tionary (Fig. 73), turn the pulling screw nut until
the driver legs contact the rear face of the transfer
case rear retainer. When the legs contact the
retainer, the damper is properly positioned on the
output shaft.
(9) Install boot on output shaft slinger, or output
shaft damper, and crimp retaining clamp with tool
C-4975-A (Fig. 74).
Fig. 70 Rear Seal Installation
1 - SPECIAL TOOL C-4076-B
2 - SPECIAL TOOL MD-998323
3 - TRANSFER CASE
Fig. 71 Position Damper on Output Shaft
1 - TRANSFER CASE
2 - OUTPUT SHAFT
3 - DAMPER WEIGHT
4 - CHAMFER
Fig. 72 Installer 8422
1 - PULLING SCREW
2 - PULLING SCREW NUT
3 - BEARING
4 - DRIVER LEGS
5 - INSTALLER DRIVER
Fig. 73 Install Damper
1 - DAMPER
2 - INSTALLER DRIVER
3 - PULLING SCREW NUT
4 - PULLING SCREW
21s - 60
TRANSFER CASE NV-231
XJ
TRANSFER CASE NV-231 (Continued)
2001 JEEP CHEROKEE
VEHICLE SPEED SENSOR
REMOVAL
The Vehicle Speed Sensor (VSS) is located on the
speedometer pinion gear adapter. If equipped with
4WD, this adapter is located on the transfer case
extension (left side) (Fig. 75). If equipped with 2WD,
this adapter is located on the extension housing of
the transmission (left side).
(1) Raise and support vehicle.
(2) Disconnect electrical connector from sensor by
pushing slide tab (Fig. 75). After slide tab has been
positioned, push in on secondary release lock (Fig.
75) on side of connector and pull connector from sen-
sor.
(3) Remove sensor mounting bolt (Fig. 76).
(4) Remove sensor (pull straight out) from speed-
ometer pinion gear adapter (Fig. 76). Do not remove
gear adapter from transmission.
INSTALLATION
(1) Clean
inside
of
speedometer
pinion
gear
adapter before installing speed sensor.
(2) Install sensor into speedometer gear adapter
and install mounting bolt. Before tightening bolt, ver-
ify speed sensor is fully seated (mounted flush) to
speedometer pinion gear adapter.
(3) Tighten sensor mounting bolt to 2.2 N·m (20 in.
lbs.) torque.
(4) Connect electrical connector to sensor.
Fig. 74 Slinger Boot Installation - Typical
1 - SPECIAL TOOL C-4975-A
2 - SLINGER
3 - BOOT
4 - CLAMP
Fig. 75 VSS Location
1 - SENSOR ELECTRICAL CONNECTOR
2 - SLIDE TAB
3 - 4WD TRANSFER CASE EXTENSION
4 - VEHICLE SPEED SENSOR
5 - RELEASE LOCK
Fig. 76 VSS Removal/Installation
1 - ELECTRICAL CONNECTOR
2 - SENSOR MOUNTING BOLT
3 - O-RING
4 - SPEEDOMETER PINION GEAR
5 - SPEEDOMETER PINION GEAR ADAPTER
6 - O-RING
7 - VEHICLE SPEED SENSOR
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TRANSFER CASE NV-231
21s - 61
TRANSFER CASE NV-231 (Continued)
2001 JEEP CHEROKEE
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