1994 JEEP CHEROKEE differential

(33) Remove intermediate clutch shaft (Fig. 26).
(34) Remove differential snap ring (Fig. 27).(35) Remove differential (Fig. 28).
(36) Remove differential needle bearings and both
needle bearing thrust washers from mainshaft.
(37) Slide low range fork pin out of shift sector slot
(Fig. 29)
Fig. 26 Removing Intermediate Clutch Shaft
Fig. 27 Removing Differential Snap Ring
Fig. 28 Differential Removal
Fig. 29 Disengage Low Range Fork
21 - 302 NP242 TRANSFER CASEJ

(47) Inspect the low range annulus gear (Fig. 38).
The gear is not a serviceable component. If
damaged, replace the gear and front case as an
assembly.
(48) Remove the oil seals from the rear retainer,
extension housing, oil pump and case halves.
(49) Mark differential case halves for reference.
(50) Remove differential case bolts and separate
top case from bottom case. Use slots in case halves to
pry them apart (Fig. 39).
(51) Remove thrust washers and planet gears from
case pins (Fig. 40).(52) Remove mainshaft and sprocket gears from
bottom case (Fig. 41). Note gear position for reference
before separating them.
CLEANING AND INSPECTION
Clean the transfer case components thoroughly
with solvent. Remove all traces of sealer from the
case and retainer seal surfaces.
Clean the oil pickup screen with solvent and dry it
with compressed air. Also use compressed air to re-
move solvent residue from all oil feed passages and
channels.
Fig. 38 Inspecting Low Range Annulus Gear
Fig. 39 Separating Differential Case Halves
Fig. 40 Removing Planet Gears And Thrust Washers
Fig. 41 Removing Mainshaft And Sprocket Gears
JNP242 TRANSFER CASE 21 - 305

Inspect the differential gears, thrust washers and
case halves. Replace the mainshaft gear if the gear
teeth or the brass ring on the underside of the gear
are damaged. Replace the differential as an assembly
if the gears, case halves, or the pins in the lower case
half are damaged.
Inspect the case halves, extension housing and re-
tainers for cracks, porosity, or damaged sealing sur-
faces. Inspect the shafts, gears, chain and shift
components for wear or damage.
Inspect all of the transfer case bearings for wear,
roughness, pitting, or galling. Replace worn or dam-
aged bearings as outlined in the assembly section.
TRANSFER CASE ASSEMBLY
(1) Lubricate the transfer case components with
automatic transmission fluid or petroleum jelly
(where indicated) during assembly.
CAUTION: The bearing bores in various transfer
case components contain oil feed holes. Be sure re-
placement bearings do not block these feed holes.
(2) Remove the front output shaft, front bearing
snap ring (Fig. 42).(3) Remove the old bearing and install the new
bearing with a driver handle and installer tool (Fig.
43).
(4) Install the front bearing snap ring (Fig. 42).
(5) Install new front output shaft oil seal (Fig. 44).
Fig. 42 Removing/Installing Front Output Shaft
Front Bearing Snap Ring
Fig. 43 Replacing Output Shaft Front Bearing
Fig. 44 Installing Front Output Shaft Seal
21 - 306 NP242 TRANSFER CASEJ

(24) Position low range fork and hub in case. Be
sure low range fork pin is engaged in the shift sector
slot (Fig. 57).
(25) Lubricate differential components with auto-
matic transmission fluid.
(26) Install sprocket gear in differential bottom
case (Fig. 58).(27) Install differential planet gears and new
thrust washers (Fig. 59).Be sure thrust washers
are installed at top and bottom of each planet
gear.
(28) Install differential mainshaft gear (Fig. 59).
(29) Align and position differential top case on bot-
tom case (Fig. 60). Align using scribe marks made at
disassembly.
(30) Install and tighten the differential case bolts
to specified torque.
Fig. 57 Positioning Low Range Fork
Fig. 58 Installing Differential Sprocket Gear
Fig. 59 Installing Mainshaft And Planet Gears
Fig. 60 Differential Case Assembly
21 - 310 NP242 TRANSFER CASEJ

(31) Install first mainshaft bearing spacer on
mainshaft (Fig. 61).
(32) Install bearing rollers on mainshaft (Fig. 61).
Coat bearing rollers with generous quantity of
petroleum jelly to hold them in place.
(33) Install remaining bearing spacer on mainshaft
(Fig. 61). Do not displace any bearings while installing
spacer.
(34) Install the differential (Fig. 62).Do not dis-
place the mainshaft bearings when installing
the differential.(35) Install the differential snap ring (Fig. 63).
(36) Install the intermediate clutch shaft (Fig. 64).
Fig. 61 Installing Mainshaft Bearing Rollers and
Spacers
Fig. 62 Differential Installation
Fig. 63 Installing Differential Snap Ring
Fig. 64 Installing Intermediate Clutch Shaft
JNP242 TRANSFER CASE 21 - 311

TIRE NOISE OR VIBRATION
The radial-ply tire on your vehicle is more sensi-
tive to improper mounting, or imbalance.
To determine if tires are the cause of vibration,
drive the vehicle over a smooth road at different
speeds. Note the effect of acceleration and decelera-
tion on noise level. Differential and exhaust noise
will change in intensity as speed varies. Tire noise
will usually remain constant.
TIRE WEAR PATTERNS
Under inflation will increase wear on the shoulders
of the tire. Over inflation will increase wear at the
center of the tread.
Excessive camber causes the tire to run at an angle
to the road. One side of tread is worn more than the
other.
Excessive toe-in or toe-out causes wear on the
tread edges. There is a feathered effect across the
tread (Fig. 7).
Fig. 7 Abnormal Tire Tread Wear Patterns
22 - 4 WHEELS AND TIRESJ

half on theouterrim flange (Fig. 3, Fig. 4). Off-ve-
hicle balancing is necessary.
Wheel balancing can be accomplished with either
on or off vehicle equipment. When using on-vehicle
balancing equipment, follow these precautions:
²Limited-slip rear axle differential, remove the op-
posite wheel/tire
²Before balancing the wheels/tires on a vehicle
equipped with a transfer case, disconnect the drive
shafts
MATCH MOUNTING
Wheels and tires are match mounted at the factory.
This means that the high spot of the tire is matchedto the low spot on the wheel rim. This technique is
used to reduce run-out in the wheel/tire assembly.
The high spot on the tire is marked with a paint
mark or a bright colored adhesive label on the out-
board sidewall. The low spot on the rim is at the
valve stem location on the wheel rim.
Before dismounting a tire from its wheel, a refer-
ence mark should be placed on the tire at the valve
stem location. This reference will ensure that it is re-
mounted in the original position on the wheel.
(1) Measure the total indicator runout on the cen-
ter of the tire tread rib. Record the indicator reading.
Fig. 3 Static Unbalance & Balance
Fig. 4 Dynamic Unbalance & Balance
JWHEELS AND TIRES 22 - 7

30RH/32RH AUTOMATIC TRANSMISSION . . . 21-66
30RH/32RH GENERAL SPECIFICATIONS . . . 21-322
30RH/32RH IN-VEHICLE SERVICE.........21-96
30RH/32RH PRESSURE TEST
SPECIFICATIONS....................21-323
30RH/32RH SNAP RING/THRUST
WASHER/THRUST PLATE
SPECIFICATIONS....................21-322
30RH/32RH TORQUE SPECIFICATIONS....21-323
30RH/32RH TRANSMISSION DIAGNOSIS . . . 21-69,
21-77,21-78,21-79,21-80,21-81,21-82,21-83,21-84,
21-85
30RH/32RH TRANSMISSION OVERHAUL . . . 21-112
30RH/32RH TRANSMISSION REMOVAL
AND INSTALLATION..................21-108
3-2 DOWNSHIFT, HYDRAULIC FLOW
DURING FULL THROTTLE..............21-92
3-2 DOWNSHIFT, HYDRAULIC FLOW
DURING PART THROTTLE..............21-91
4WD INDICATOR......................8E-22
4WD INDICATOR INOPERATIVE............8E-4
4WD INDICATOR LAMP..................8E-2
60-WAY CONNECTOR, POWERTRAIN
CONTROL MODULE (PCM).............14-38
ABBREVIATIONS, SYMBOLS, FUSES........8W-6
ABS BRAKE DIAGNOSIS...................5-3
ABS BRAKES, BRAKE BLEEDINGÐWITH.....5-14
ABS COMPONENT SERVICE...............5-47
ABS FAULT DIAGNOSIS................5-4,5-6
ABS OPERATION IN ANTILOCK BRAKING
MODE..............................5-43
ABS OPERATION IN NORMAL BRAKING
MODE..............................5-43
ABS SYSTEM OPERATION................5-39
ABS SYSTEM WIRING AND ELECTRICAL
CIRCUITS............................5-4
ABS WARNING LIGHT DISPLAY.............5-3
ABSOLUTE PRESSURE (MAP) SENSOR,
MANIFOLD; FUEL SYSTEM.............14-57
ABSOLUTE PRESSURE (MAP) SENSOR,
MANIFOLD; IGNITION SYSTEMS....8D-5,8D-27
ABSOLUTE PRESSURE (MAP) SENSORÐ
PCM INPUT, MANIFOLD...............14-21
ABSOLUTE PRESSURE (MAP) SENSOR
TEST, MANIFOLD; FUEL SYSTEM........14-44
ABSOLUTE PRESSURE (MAP) SENSOR
TEST, MANIFOLD; IGNITION
SYSTEMS..........................8D-14
ABSORBER, SHOCK; FRONT
SUSPENSION AND AXLE............2-12,2-14
ABSORBER, SHOCK; REAR SUSPENSION
AND AXLES........................3-3,3-5
A/C BLOWER MOTOR...................24-43
A/C CONDENSER......................24-42
A/C CONTROL PANEL...................24-41
A/C CONTROL PANEL REPLACEMENT,
HEATER ............................24-26
A/C OPERATION........................24-1
A/C PERFORMANCE TEST................24-8
A/C RECIRCULATING AIR DOOR
VACUUM MOTOR REPLACEMENT........24-31
ACCELERATION SENSOR INSTALLATION.....5-52
ACCELERATION SENSOR REMOVAL........5-52
ACCELERATION SWITCH.................5-41
ACCELERATION SWITCH OPERATION.......5-45
ACCELERATOR PEDAL..................14-16
ACCELERATOR PEDAL AND THROTTLE
CABLE........................14-16,14-54
ACCENT PAINT.......................23-202
ACCESSORY DRIVE BELT.................0-20
ACCESSORY DRIVE BELTS, ENGINE........7-31
ACCUMULATOR PISTONS AND SPRINGS . . 21-179
ACTUATOR MOTOR STALL TEST...........8P-6
ADAPTER HOUSING AND PARK LOCK
COMPONENT OVERHAUL.............21-120
ADAPTER HOUSING SEAL REPLACEMENT . . 21-182
ADD-A-TRUNK.......................23-199
ADJUSTER PLUG ASSEMBLY
REPLACEMENT......................19-27
ADJUSTMENT, BRAKELIGHT SWITCH.......5-66
ADJUSTMENT, DIFFERENTIAL SHIM
PACK MEASUREMENT..................2-42
ADJUSTMENT, DOOR LATCH
.............23-55
ADJUSTMENT, DRUM BRAKE
..............5-35
ADJUSTMENT, FOG LAMP BEAM
..........8L-12
ADJUSTMENT, FRONT BAND
.............21-99ADJUSTMENT, HEADLAMP BEAM..........8L-3
ADJUSTMENT, HOOD....................23-9
ADJUSTMENT, LIFTGATE................23-70
ADJUSTMENTÐMAJOR, DOOR
ALIGNMENT.........................23-47
ADJUSTMENTÐMINOR, DOOR
ALIGNMENT.........................23-46
ADJUSTMENT, PARK INTERLOCK CABLE . . . 21-186
ADJUSTMENT, PARKING BRAKE...........5-63
ADJUSTMENT, PRELIMINARY
INSPECTION.......................21-167
ADJUSTMENT PROCEDURES,
TRANSMISSION ASSEMBLY...........21-146
ADJUSTMENT, REAR BAND..............21-99
ADJUSTMENT, SHIFT CABLE............21-186
ADJUSTMENT, SHIFT LINKAGE....21-275,21-296
ADJUSTMENT, TAILGATE...............23-160
ADJUSTMENT, TRANSMISSION
ASSEMBLY..............21-15,21-51,21-255
ADJUSTMENT, TRANSMISSION
THROTTLE CABLE..............21-98,21-185
ADJUSTMENT, TRANSMISSION
THROTTLE VALVE CABLE..............21-70
ADJUSTMENT, VALVE BODY ASSEMBLY . . . 21-144
ADJUSTMENT, WHEEL SENSOR AIR GAP....5-49
ADJUSTMENT (XJ), PARK INTERLOCK
CABLE.............................21-97
ADJUSTMENT (XJ), SHIFT CABLE.........21-97
ADJUSTMENT (YJ), GEARSHIFT LINKAGE . . . 21-96
ADJUSTMENTS, ALIGNMENT
MEASUREMENTS......................2-6
ADJUSTMENTS IN VEHICLE, GEAR........19-37
ADJUSTMENTS ON BENCH, GEAR.........19-42
ADJUSTMENTS, SPECIFICATIONS AND
BAND..............................21-66
ADJUSTMENTS, STEERING GEAR.........19-22
AIR CLEANER..........................25-7
AIR CLEANER FILTER ELEMENT, ENGINE....0-16
AIR CLEANER HOUSING; EMISSION
CONTROL SYSTEMS...................25-8
AIR CLEANER HOUSING; FUEL SYSTEM....14-54
AIR CONDITIONER COMPRESSOR/HOSES/
FITTINGS............................0-21
AIR CONDITIONING CLUTCH RELAY.......14-54
AIR CONDITIONING CLUTCH RELAYÐ
PCM OUTPUT.......................14-24
AIR CONDITIONING CONTROLSÐPCM
INPUT.............................14-19
AIR CONDITIONING, DESCRIPTION........24-41
AIR CONDITIONING SCHEMATIC..........24-25
AIR CONDITIONING SYSTEM DIAGNOSIS . . . 24-12
AIR CONDITIONING SYSTEMÐXJ
VEHICLES..........................24-14
AIR CONDITIONING SYSTEMÐYJ
VEHICLES..........................24-15
AIR CONTROL (IAC) MOTOR, IDLE........14-56
AIR CONTROL (IAC) MOTORÐPCM
OUTPUT, IDLE.......................14-25
AIR CONTROL MOTOR TEST, IDLE........14-46
AIR DEFLECTOR, COWL WEATHERSTRIP
SEAL/CROSSMEMBER.................23-10
AIR DOOR VACUUM MOTOR, FRESH.......24-41
AIR DOOR VACUUM MOTOR
REPLACEMENT, A/C RECIRCULATING.....24-31
AIR EXHAUST GRILLEÐXJ VEHICLES......23-30
AIR FILTER; EMISSION CONTROL
SYSTEMS...........................25-9
AIR FILTER; FUEL SYSTEM..............14-54
AIR GAP ADJUSTMENT, WHEEL SENSOR....5-49
AIR GAP, REAR SPEED SENSOR............5-3
AIR INTAKE DUCT, FRESH...............24-41
AIR PRESSURE TEST...................21-73
AIR, PURGING COMPRESSOR OF.........24-17
AIR TEMPERATURE SENSOR, INTAKE......14-54
AIR TEMPERATURE SENSOR, INTAKE
MANIFOLD.....................8D-5,8D-27
AIR TEMPERATURE SENSORÐPCM
INPUT, INTAKE.......................14-20
AIR TEMPERATURE, SENSOR RESISTANCE
(OHMS)ÐCOOLANT TEMPERATURE
SENSOR/MANIF; FUEL SYSTEM
.........14-43
AIR TEMPERATURE SENSOR TEST,
INTAKE
............................14-43
AIR TEMPERATURE SENSOR TEST,
INTAKE MANIFOLD
...................8D-14
AIR VENTILATION, FRESH
...............24-39AIRFLOW DIAGRAM....................24-23
ALIGNMENT ADJUSTMENTÐMAJOR,
DOOR.............................23-47
ALIGNMENT ADJUSTMENTÐMINOR,
DOOR.............................23-46
ALIGNMENT, FRAME...................13-10
ALIGNMENT, FRONT WHEEL...............2-5
ALIGNMENT, HOOD...................23-138
ALIGNMENT MEASUREMENTS AND
ADJUSTMENTS........................2-6
ALIGNMENTÐMINOR, XJ DOOR..........23-46
ALIGNMENT, REAR AXLE..................3-8
ALIGNMENT SPECIFICATIONSÐXJ
VEHICLES............................2-9
ALIGNMENT SPECIFICATIONSÐYJ VEHICLES . . 2-9
ANALYSIS, BACKLASH AND CONTACT
PATTERN; FRONT SUSPENSION AND AXLE . 2-44
ANALYSIS, BACKLASH AND CONTACT
PATTERN; REAR SUSPENSION AND AXLES . 3-25
ANCHOR AND BUMPER, LIFTGATE
LICENSE PLATE SCREW...............23-72
ANGLE MEASUREMENT, UNIVERSAL
JOINT..............................16-4
ANTENNA, RADIO.......................8F-8
ANTENNA TESTS.......................8F-9
ANTILOCK BRAKE SYSTEM (ABS)...........5-1
ANTI-LOCK BRAKE SYSTEM (ABS)
INDICATOR LAMP.....................8E-2
ANTILOCK BRAKE SYSTEM OPERATION.....5-43
ANTILOCK BRAKING MODE, ABS
OPERATION..........................5-43
ANTI-LOCK INDICATOR..................8E-4
ANTILOCK MODE, VEHICLE RESPONSE.......5-3
APPLICATION CHARTS, GEARTRAIN
OPERATION........................21-159
APPLICATION, PAINT..................23-201
APPLICATION, TRANSMISSION...........21-66
APPLIQUE, RADIATOR GRILLE
...........23-134
APPLIQUEÐXJ VEHICLES, QUARTER
WINDOW
...........................23-29
APRONS, FENDER SPLASH
.............23-147
ARM AND PIVOT ASSEMBLY
REPLACEMENT, FRONT WIPER
...........8K-9
ARM, LOWER SUSPENSION
...............2-11
ARM, PITMAN
...................19-15,19-18
ARM REPLACEMENT, FRONT WIPER
........8K-8
ARM REPLACEMENT, REAR WIPER
........8K-12
ARM, UPPER SUSPENSION
...............2-11
ARMS, ROCKER
....................9-19,9-59
ASH RECEIVER TRAY LAMP, I/P
..........23-92
ASSEMBLY AND ADJUSTMENT
PROCEDURES, TRANSMISSION
........21-146
ASSEMBLY AND ADJUSTMENT,
TRANSMISSION
..........21-15,21-51,21-255
ASSEMBLY AND ADJUSTMENT, VALVE
BODY
.............................21-144
ASSEMBLY, CALIPER
....................5-29
ASSEMBLY, DIFFERENTIAL; FRONT
SUSPENSION AND AXLE
................2-36
ASSEMBLY, DIFFERENTIAL; REAR
SUSPENSION AND AXLES
...............3-19
ASSEMBLY, FINAL; FRONT SUSPENSION
AND AXLE
...........................2-44
ASSEMBLY, FINAL; REAR SUSPENSION
AND AXLES
..........................3-26
ASSEMBLY, FUEL RAIL
..................14-56
ASSEMBLY, GEAR
......................19-41
ASSEMBLY, PRESSURE GAUGE AND
MANIFOLD
...........................24-2
ASSEMBLY REPLACEMENT, ADJUSTER
PLUG
..............................19-27
ASSEMBLY REPLACEMENT, CONNECTOR
AND TERMINAL
......................8W-5
ASSEMBLY REPLACEMENT, FRONT WIPER
ARM AND PIVOT
......................8K-9
ASSEMBLY REPLACEMENT, SOLENOID
AND LATCH
..........................8P-6
ASSEMBLY REPLACEMENTÐXJ VEHICLES,
DRIVE AXLE; FRONT SUSPENSION AND
AXLE
...............................2-21
ASSEMBLY REPLACEMENTÐXJ VEHICLES,
DRIVE AXLE; REAR SUSPENSION AND
AXLES
..........................3-11,3-30
JINDEX1
Description Group-Page Description Group-Page Description Group-Page