1998 DODGE RAM 1500 Ball bearings

TRANSFER CASE - NV241 GENII
TABLE OF CONTENTS
page page
TRANSFER CASE - NV241 GENII
DESCRIPTION........................415
OPERATION..........................415
DIAGNOSIS AND TESTING - TRANSFER
CASE - NV241 GENII..................416
REMOVAL............................417
DISASSEMBLY........................417
CLEANING...........................426
INSPECTION.........................426
ASSEMBLY...........................428
INSTALLATION........................438
SPECIFICATIONS
TRANSFER CASE - NV241 GENII........438
SPECIAL TOOLS
TRANSFER CASE - NV241/NV243........439
EXTENSION HOUSING BUSHING AND SEAL
REMOVAL............................440INSTALLATION........................440
FLUID
STANDARD PROCEDURE - FLUID DRAIN AND
REFILL............................441
FRONT OUTPUT SHAFT SEAL
REMOVAL............................441
INSTALLATION........................442
POSITION SENSOR
DESCRIPTION........................442
OPERATION..........................442
REMOVAL............................443
INSTALLATION........................443
SHIFT LEVER
REMOVAL............................444
INSTALLATION........................445
ADJUSTMENTS
ADJUSTMENT - SHIFT LEVER..........446
TRANSFER CASE - NV241
GENII
DESCRIPTION
The NV241 GENII transfer case is a part-time
transfer case with a low-range gear system. It pro-
vides three operating ranges plus a NEUTRAL posi-
tion. The low range position provides a gear
reduction ratio of 2.72:1 for increased low speed
torque capability.
The gear cases and extension are all of aluminum
(Fig. 1). Drive sprockets and an interconnecting drive
chain are used to transmit engine torque to the front/
rear propeller shafts. The mainshaft, input gear and
front output shaft are supported by ball and needle
bearings.
IDENTIFICATION
An identification tag (Fig. 2) is attached to the rear
case of every transfer case. The tag provides the
transfer case model number, assembly number, serial
number, and low range ratio.
The transfer case serial number also represents
the date of build.
OPERATION
OPERATING RANGE
Transfer case operating ranges are:
²2H (2-wheel drive)²4H (4-wheel drive)
²4LO (4-wheel drive low range)
The 2H range is for use on any road surface at any
time.
The 4H and 4LO ranges are for off road use only.
They are not for use on hard surface roads. The only
exception being when the road surface is covered by
ice and snow.
The low range reduction gear system is operative
in 4LO range only. This range is for extra pulling
Fig. 1 Transfer Case - Front View
1 - TRANSFER CASE
2 - MANUAL LEVER
3 - POSITION SENSOR
DRTRANSFER CASE - NV241 GENII 21 - 415

TRANSFER CASE - NV271
TABLE OF CONTENTS
page page
TRANSFER CASE - NV271
DESCRIPTION........................447
OPERATION..........................448
DIAGNOSIS AND TESTING - TRANSFER
CASE - NV271.......................448
REMOVAL............................450
DISASSEMBLY........................450
CLEANING...........................459
INSPECTION.........................459
ASSEMBLY...........................461
INSTALLATION........................473
SPECIFICATIONS
TRANSFER CASE - NV271.............473
SPECIAL TOOLS
TRANSFER CASE NV271/NV273.........474
EXTENSION HOUSING SEAL AND DUST BOOT
REMOVAL............................476INSTALLATION........................476
FLUID
STANDARD PROCEDURE - FLUID DRAIN AND
REFILL............................476
FRONT OUTPUT SHAFT SEAL
REMOVAL............................477
INSTALLATION........................477
POSITION SENSOR
DESCRIPTION........................477
OPERATION..........................477
REMOVAL............................478
INSTALLATION........................478
SHIFT LEVER
REMOVAL............................479
INSTALLATION........................480
ADJUSTMENTS
ADJUSTMENT - SHIFT LEVER..........481
TRANSFER CASE - NV271
DESCRIPTION
The NV271 transfer case is a part-time transfer
case with a low-range gear system. It provides three
operating ranges plus a NEUTRAL position. The low
range position provides a gear reduction ratio of
2.72:1 for increased low speed torque capability.
The gear cases and extension are all of aluminum
(Fig. 1). Drive sprockets and an interconnecting drive
chain are used to transmit engine torque to the front/
rear propeller shafts. The mainshaft, input gear and
front output shaft are supported by ball and needle
bearings.
Fig. 1 Transfer Case - Front View
1 - TRANSFER CASE
2 - MANUAL LEVER
3 - POSITION SENSOR
DRTRANSFER CASE - NV271 21 - 447

BALL JOINT - DIAGNOSIS AND TESTING,
LOWER.........................2-19,2-34
BALL JOINT - DIAGNOSIS AND TESTING,
UPPER..........................2-27,2-36
BALL JOINT - INSTALLATION, LOWER . 2-20,2-35
BALL JOINT - INSTALLATION, UPPER.....2-36
BALL JOINT - REMOVAL, LOWER.....2-19,2-35
BALL JOINT - REMOVAL, UPPER.........2-36
BAND OPERATION - DIAGNOSIS AND
TESTING, AIR TESTING
TRANSMISSION CLUTCH.............21-144
BANDS - ADJUSTMENT...............21-195
BANDS - DESCRIPTION...............21-194
BANDS - OPERATION................21-194
BAR - DESCRIPTION, STABILIZER........2-24
BAR - DESCRIPTION, TORSION..........2-26
BAR - INSTALLATION, STABILIZER....2-25,2-40
BAR - INSTALLATION, TORSION..........2-27
BAR - INSTALLATION, TRACK...........19-38
BAR - OPERATION, STABILIZER..........2-25
BAR - OPERATION, TORSION............2-26
BAR - REMOVAL, STABILIZER.......2-25,2-39
BAR - REMOVAL, TORSION.............2-26
BAR - REMOVAL, TRACK..............19-38
BAR CROSS MEMBER BUSHING -
INSTALLATION, TORSION...............2-15
BAR CROSSMEMBER BUSHING -
REMOVAL, TORSION...................2-13
BASE BRAKE, SPECIFICATIONS...........5-10
BASE BRAKE SYSTEM - DIAGNOSIS AND
TESTING.............................5-2
BASE BRAKES, SPECIAL TOOLS...........5-5
BASECOAT/CLEARCOAT FINISH -
DESCRIPTION.......................23-73
BATTERIES - STANDARD PROCEDURE,
RKE TRANSMITTER...................8N-8
BATTERY - DESCRIPTION...............8F-7
BATTERY - DIAGNOSIS AND TESTING.....8F-7
BATTERY CABLES - DESCRIPTION.......8F-14
BATTERY CABLES - DIAGNOSIS AND
TESTING...........................8F-15
BATTERY CABLES - INSTALLATION.......8F-17
BATTERY CABLES - OPERATION.........8F-15
BATTERY CABLES - REMOVAL..........8F-16
BATTERY CHARGING - STANDARD
PROCEDURE.........................8F-8
BATTERY HOLDDOWN - DESCRIPTION....8F-14
BATTERY HOLDDOWN - INSTALLATION . . . 8F-14
BATTERY HOLDDOWN - OPERATION.....8F-14
BATTERY HOLDDOWN - REMOVAL.......8F-14
BATTERY SYSTEM - CLEANING...........8F-5
BATTERY SYSTEM - DESCRIPTION........8F-1
BATTERY SYSTEM - DIAGNOSIS AND
TESTING............................8F-2
BATTERY SYSTEM - INSPECTION.........8F-5
BATTERY SYSTEM - OPERATION.........8F-2
BATTERY SYSTEM - SPECIFICATIONS......8F-6
BATTERY SYSTEM SPECIAL TOOLS,
SPECIAL TOOLS......................8F-7
BATTERY TEMPERATURE SENSOR -
DESCRIPTION.......................8F-21
BATTERY TEMPERATURE SENSOR -
INSTALLATION.......................8F-21
BATTERY TEMPERATURE SENSOR -
OPERATION.........................8F-21
BATTERY TEMPERATURE SENSOR -
REMOVAL..........................8F-21
BATTERY TESTER - STANDARD
PROCEDURE, USING MICRO 420........8F-12
BATTERY TRAY - DESCRIPTION.........8F-17
BATTERY TRAY - INSTALLATION.........8F-18
BATTERY TRAY - OPERATION...........8F-17
BATTERY TRAY - REMOVAL............8F-17
BEAM INDICATOR - DESCRIPTION, HIGH . . 8J-28
BEAM INDICATOR - OPERATION, HIGH....8J-28
BEARING - ADJUSTMENTS, CENTER.......3-9
BEARING - FITTING - STANDARD
PROCEDURE, CRANKSHAFT MAIN . . 9-134,9-207
BEARING - INSTALLATION, CENTER........3-9
BEARING - INSTALLATION, CLUTCH
RELEASE............................6-10
BEARING - INSTALLATION, HUB
..........2-32
BEARING - INSTALLATION, OUTPUT
SHAFT FRONT
......................21-216
BEARING - INSTALLATION, OUTPUT
SHAFT REAR
.......................21-217
BEARING - INSTALLATION, PILOT
........6-12
BEARING - REMOVAL, CENTER
...........3-9BEARING - REMOVAL, CLUTCH RELEASE . . . 6-9
BEARING - REMOVAL, HUB.............2-31
BEARING - REMOVAL, OUTPUT SHAFT
FRONT............................21-216
BEARING - REMOVAL, OUTPUT SHAFT
REAR.............................21-216
BEARING - REMOVAL, PILOT............6-11
BEARING AND CRANKSHAFT JOURNAL
CLEARANCE - STANDARD
PROCEDURE, CONNECTING ROD........9-272
BEARING CLEARANCE - STANDARD
PROCEDURE, MAIN...................9-274
BEARING FITTING - STANDARD
PROCEDURE, CONNECTING ROD........9-129
BEARING FITTING, STANDARD
PROCEDURE - CONNECTING ROD........9-49
BEARING FITTING, STANDARD
PROCEDURE - MAIN...................9-44
BEARINGS - INSPECTION, CRANKSHAFT
MAIN.........................9-135,9-208
BEARINGS - INSTALLATION, AXLE . . 3-125,3-153,
3-44,3-95
BEARINGS - INSTALLATION, CAMSHAFT . . 9-271
BEARINGS - INSTALLATION,
DIFFERENTIAL CASE . . . 3-106,3-134,3-161,3-48,
3-75
BEARINGS - REMOVAL, AXLE . 3-125,3-152,3-43,
3-95
BEARINGS - REMOVAL, CAMSHAFT......9-268
BEARINGS - REMOVAL, DIFFERENTIAL
CASE............3-105,3-134,3-161,3-48,3-75
BELT - 3.7L / 4.7L - INSTALLATION,
DRIVE................................7-26
BELT - 3.7L / 4.7L - REMOVAL, DRIVE.....7-26
BELT - 5.9L DIESEL - INSTALLATION,
DRIVE..............................7-29
BELT - 5.9L DIESEL - REMOVAL, DRIVE....7-29
BELT / CHAIN COVER(S) -
INSTALLATION, TIMING...........9-171,9-81
BELT / CHAIN COVER(S) - REMOVAL,
TIMING........................9-170,9-81
BELT - DIAGNOSIS AND TESTING,
ACCESSORY DRIVE................7-24,7-27
BELT - INSTALLATION, FRONT CENTER
SEAT ..............................8O-31
BELT - REMOVAL, FRONT CENTER SEAT . . 8O-30
BELT & RETRACTOR - INSTALLATION,
FRONT CENTER SEAT.................8O-29
BELT & RETRACTOR - INSTALLATION,
REAR CENTER SEAT..................8O-45
BELT & RETRACTOR - INSTALLATION,
REAR OUTBOARD SEAT...............8O-47
BELT & RETRACTOR - REMOVAL, FRONT
CENTER SEAT.......................8O-29
BELT & RETRACTOR - REMOVAL, REAR
CENTER SEAT.......................8O-44
BELT & RETRACTOR - REMOVAL, REAR
OUTBOARD SEAT....................8O-46
BELT BUCKLE - INSTALLATION, FRONT
OUTBOARD SEAT....................8O-38
BELT BUCKLE - REMOVAL, FRONT
OUTBOARD SEAT....................8O-37
BELT MOLDING - INSTALLATION, FRONT
DOOR INNER........................23-93
BELT MOLDING - INSTALLATION, FRONT
DOOR OUTER.......................23-93
BELT MOLDING - INSTALLATION, REAR
DOOR INNER........................23-94
BELT MOLDING - INSTALLATION, REAR
DOOR OUTER.......................23-94
BELT MOLDING - REMOVAL, FRONT
DOOR INNER........................23-93
BELT MOLDING - REMOVAL, FRONT
DOOR OUTER.......................23-92
BELT MOLDING - REMOVAL, REAR
DOOR INNER........................23-94
BELT MOLDING - REMOVAL, REAR
DOOR OUTER.......................23-93
BELT SWITCH - DESCRIPTION, SEAT.....8O-51
BELT SWITCH - DIAGNOSIS AND
TESTING, SEAT
......................8O-51
BELT SWITCH - OPERATION, SEAT
.......8O-51
BELT TENSION REDUCER -
DESCRIPTION, SEAT
..................8O-53
BELT TENSION REDUCER - DIAGNOSIS
AND TESTING, SEAT
..................8O-54
BELT TENSION REDUCER - OPERATION,
SEAT
..............................8O-54BELT TENSIONER - 3.7L / 4.7L -
DESCRIPTION........................7-21
BELT TENSIONER - 3.7L / 4.7L -
INSTALLATION........................7-22
BELT TENSIONER - 3.7L / 4.7L -
OPERATION..........................7-21
BELT TENSIONER - 3.7L / 4.7L -
REMOVAL...........................7-21
BELT TENSIONER - 5.9L DIESEL -
DESCRIPTION........................7-23
BELT TENSIONER - 5.9L DIESEL -
INSTALLATION........................7-24
BELT TENSIONER - 5.9L DIESEL -
OPERATION..........................7-23
BELT TENSIONER - 5.9L DIESEL -
REMOVAL...........................7-23
BELT TENSIONER - DESCRIPTION, SEAT . . 8O-52
BELT TENSIONER - OPERATION, SEAT....8O-53
BELT TENSIONER-5.7L - DESCRIPTION....7-22
BELT TENSIONER-5.7L - INSTALLATION....7-23
BELT TENSIONER-5.7L - OPERATION......7-22
BELT TENSIONER-5.7L - REMOVAL.......7-22
BELT TURNING LOOP ADJUSTER -
INSTALLATION, SEAT.................8O-55
BELT TURNING LOOP ADJUSTER -
REMOVAL, SEAT.....................8O-55
BELT/CHAIN AND SPROCKETS -
INSPECTION, TIMING.............9-174,9-84
BELT/CHAIN AND SPROCKETS -
INSTALLATION, TIMING...........9-176,9-85
BELT/CHAIN AND SPROCKETS -
REMOVAL, TIMING.................9-172,9-83
BEZEL - INSTALLATION, CLUSTER.......23-49
BEZEL - INSTALLATION, INSTRUMENT
PANEL CENTER......................23-57
BEZEL - INSTALLATION, INSTRUMENT
PANEL DRIVER SIDE..................23-58
BEZEL - INSTALLATION, INSTRUMENT
PANEL HEADLAMP SWITCH............23-56
BEZEL - REMOVAL, CLUSTER...........23-49
BEZEL - REMOVAL, INSTRUMENT PANEL
CENTER............................23-57
BEZEL - REMOVAL, INSTRUMENT PANEL
DRIVER SIDE........................23-58
BEZEL - REMOVAL, INSTRUMENT PANEL
HEADLAMP SWITCH..................23-56
BIN - INSTALLATION, STORAGE.........23-61
BIN - INSTALLATION, UNDER SEAT
STORAGE...........................23-80
BIN - REMOVAL, STORAGE.............23-61
BIN - REMOVAL, UNDER SEAT STORAGE . . 23-80
BIN COVERING - INSTALLATION, UNDER
SEAT STORAGE......................23-80
BIN COVERING - REMOVAL, UNDER
SEAT STORAGE......................23-80
BIN LATCH - INSTALLATION, UNDER
SEAT STORAGE......................23-80
BIN LATCH - REMOVAL, UNDER SEAT
STORAGE...........................23-80
BIN LID - INSTALLATION, UNDER SEAT
STORAGE...........................23-80
BIN LID - REMOVAL, UNDER SEAT
STORAGE...........................23-80
BLADE - DESCRIPTION, WIPER.........8R-18
BLADE - INSTALLATION, WIPER.........8R-20
BLADE - OPERATION, WIPER...........8R-19
BLADE - REMOVAL, WIPER............8R-19
BLEEDING - STANDARD PROCEDURE......5-31
BLEEDING - STANDARD PROCEDURE,
ABS BRAKE..........................5-46
BLEEDING - STANDARD PROCEDURE,
MANUAL.............................5-5
BLEEDING - STANDARD PROCEDURE,
MASTER CYLINDER...................5-26
BLEEDING - STANDARD PROCEDURE,
PRESSURE...........................5-5
BLEND DOOR - INSTALLATION..........24-27
BLEND DOOR - REMOVAL.............24-27
BLEND DOOR ACTUATOR -
DESCRIPTION.......................24-17
BLEND DOOR ACTUATOR -
INSTALLATION.......................24-18
BLEND DOOR ACTUATOR - OPERATION
. . . 24-17
BLEND DOOR ACTUATOR - REMOVAL
....24-17
BLOCK - CLEANING, ENGINE
. . 9-128,9-205,9-39
BLOCK - DESCRIPTION, BLOWER
MOTOR RESISTOR
...................24-18
BLOCK - DESCRIPTION, ENGINE
.....9-128,9-38
DRINDEX 3
Description Group-Page Description Group-Page Description Group-Page