- Attach the J 45759
to the transfer case using the adapter
studs. All of the transfer case disassembly procedures can be performed
with the case mounted to the J 45759
.
- Mount the J 3289-20
(1) to a sturdy workbench.
- Install the J 45759
(2) into J 3289-20
(1) and secure with pivot pin.
- Remove the drain and fill
plugs.
- Drain the fluid from the transfer case.
- Remove the encoder motor
mounting bolts.
- Remove the encoder motor assembly.
- Remove the encoder motor gasket.
- Remove the left rear speed
sensor.
- Remove the right rear speed sensor.
- Remove the front speed
sensor.
- Remove the vent tube,
only if it is damaged.
- Remove the rubber plug.
Notice: Refer to Transfer Case Seal Removal Notice in the Preface section.
- Remove the front output shaft seal.
Notice: Refer to Transfer Case Seal Removal Notice in the Preface section.
- Remove the input shaft seal.
Notice: Refer to Transfer Case Seal Removal Notice in the Preface section.
- Remove the rear output shaft seal.
- Inspect the rear bushing
for scoring or wear.
- Using the J 45380
, remove the rear bushing.
• | Install the finger section of the J 45380
in front of the bushing. |
• | Install the tube and forcing screw assembly to the finger section.
Ensure the forcing screw is backed out. |
• | Using a wrench on the forcing screw, remove the rear bushing. |
- Remove the transfer case
retaining bolts and studs.
- Mark the location of the studs and brackets.
- Insert a flat bladed screwdriver
in the slot on the left side of the transfer case.
- Insert a flat bladed screwdriver
in the slot on the right side of the transfer case.
- Apply equal pressure on both of the screwdrivers, in a downward
motion, and separate the front and rear case halves.
- Insert snap ring pliers
in the slot.
- Using the snap ring pliers, open the retaining ring for the rear
output shaft bearing.
- Remove the rear case from
the front case.
- Remove the oil pump wear
sleeve, only if it is worn or damaged.
- Remove the rear output
shaft bearing retaining ring.
- Remove the rear output
shaft bearing.
- Remove the speed reluctor
wheel.
- Remove the magnet.
- Remove the oil pump screen
assembly.
- Remove the oil pump assembly.
- Remove the oil pump pick
up tube seal.
- Remove the drive sprocket
retaining ring.
- Remove the driven sprocket
retaining ring.
Important: If the drive chain and sprockets are to be used again, mark the relationship
of the drive chain to the sprockets for proper alignment of the wear pattern.
- Remove the drive chain and sprockets.
- Remove the rear output
shaft assembly.
- Mount the rear output shaft in a soft-jaw vise with the
input end up.
- Remove the clutch retaining
ring.
- Remove the clutch pressure
plate assembly.
- Remove the clutch pressure plate spring.
- Remove the clutch pressure
plate bearing, with the clutch pressure plate hub, from the clutch pressure
plate.
- Inspect the bearing for
being faulty. Refer to
Transfer Case Cleaning and Inspection
.
- If the bearing is faulty, using a hydraulic press and a suitable
adapter, remove the clutch pressure plate bearing from the clutch pressure
plate hub.
- Discard the bearing after removal.
- Remove the clutch hub
retaining ring.
- Remove the clutch housing
and hub assembly from the rear output shaft.
- Remove the clutch hub oil restrictor plate.
- Turn the clutch assembly
over on a workbench.
- Remove the clutch housing.
- Remove the clutch hub.
- Remove the clutch backing plate.
Important: Do not wash the clutch inner friction plates in cleaning solvent.
- Separate the clutch plates for inspection.
- Remove and discard the shim or shims.
- Remove the oil restrictor
from the rear output shaft, if replacing the shaft.
- Inspect the bearing in
the clutch housing for being faulty. Refer to
Transfer Case Cleaning and Inspection
.
- If the bearing is faulty, use a brass drift and a hammer to remove
the bearing.
- Remove both of the clutch
lever pivot pins with washers and O-ring seals.
- Remove the shift detent
spring bolt.
- Remove the following components:
• | The shift detent plunger plug O-ring seal |
• | The shift detent spring |
• | The shift detent plunger |
- Remove the clutch lever
assembly.
Important: Do not scratch the oil seal surface of the input shaft with the retaining
ring.
- Remove the input shaft retaining ring.
- Remove the input shaft
bearing retaining ring.
- Remove the input shaft
assembly.
- Remove the input shaft
bearing. Do not use the bearing again after removal.
- Using a brass drift, remove the input
gear pilot bearing. Do not use the bearing again after removal.
- Remove the front output
shaft dust shield.
Important: Do not scratch the oil seal surface on the front output shaft when removing
the retaining ring.
- Remove the front output shaft retaining ring.
- Remove the front output
shaft assembly.
- If damaged, remove the
speed sensor reluctor wheel from the front output shaft using a hydraulic
press. Do not use the speed sensor reluctor wheel again after removal.
- Remove the front output
shaft bearing retaining ring.
- Remove the front output
shaft bearing.
- Remove the mounting studs,
only if they are damaged.
- Inspect the front output
shaft rear bearing for being faulty. Refer to
Transfer Case Cleaning and Inspection
.
- If the bearing is faulty, remove the bearing using the J 23907
(2) and the J 26941
(1).
- Remove the retaining ring
for the control actuator lever shaft.
- Remove the control actuator
lever shaft.
- Inspect the control actuator lever bearing and seal for being
faulty. Refer to
Transfer Case Cleaning and Inspection
.
- If the bearing is leaking or faulty, remove the bearing from the
case.