1998 DODGE RAM 1500 table of contents

TRANSFER CASE - NV243
TABLE OF CONTENTS
page page
TRANSFER CASE - NV243
DESCRIPTION........................482
OPERATION..........................483
DIAGNOSIS AND TESTING - TRANSFER
CASE - NV243.......................483
REMOVAL............................484
DISASSEMBLY........................484
CLEANING...........................493
INSPECTION.........................493
ASSEMBLY...........................496
INSTALLATION........................505
SPECIFICATIONS
TRANSFER CASE - NV243.............505
SPECIAL TOOLS
TRANSFER CASE - NV243.............506
EXTENSION HOUSING SEAL
REMOVAL............................507
INSTALLATION........................507FLUID
STANDARD PROCEDURE - FLUID DRAIN AND
REFILL............................507
FRONT OUTPUT SHAFT SEAL
REMOVAL............................507
INSTALLATION........................508
MODE SENSOR
DESCRIPTION........................509
OPERATION..........................509
SELECTOR SWITCH
DESCRIPTION........................510
OPERATION..........................510
SHIFT MOTOR
DESCRIPTION........................511
OPERATION..........................511
REMOVAL............................511
INSTALLATION........................511
TRANSFER CASE - NV243
DESCRIPTION
The NV243 is an electronically controlled part-time
transfer case with a low range gear reduction system.
The NV243 has three operating ranges plus a NEU-
TRAL position. The low range system provides a gear
reduction ratio for increased low speed torque capa-
bility.
The geartrain is mounted in two aluminum case
halves attached with bolts. The mainshaft front and
rear bearings are mounted in aluminum retainer
housings bolted to the case halves.
OPERATING RANGES
Transfer case operating ranges are:
²2WD (2-wheel drive)
²4HI (4-wheel drive)
²4LO (4-wheel drive low range)
²NEUTRAL
The 2WD range is for use on any road surface at
any time.The 4HI 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 wet or slip-
pery or covered by ice and snow.
The low range reduction gear system is operative
in 4LO range only. This range is for extra pulling
power in off road situations. Low range reduction
ratio is 2.72:1.
SHIFT MECHANISM
Operating ranges are selected with a dash
mounted shift selector switch. The shift selector
switch provides a input to the Transfer Case Control
Module (TCCM) to indicate the driver's desire to
change operating ranges. The TCCM uses this input,
along with input from the transfer case mounted
mode sensor and information from the vehicle's bus,
to determine if a shift is permitted. If the TCCM
decides the shift is permitted, the TCCM controls the
shift motor, mounted to the exterior of the transfer
case, to perform the shift.
21 - 482 TRANSFER CASE - NV243DR

TRANSFER CASE - NV244 GENII
TABLE OF CONTENTS
page page
TRANSFER CASE - NV244 GENII
DESCRIPTION........................512
OPERATION..........................513
DIAGNOSIS AND TESTING - TRANSFER
CASE - NV244.......................513
REMOVAL............................514
DISASSEMBLY........................514
CLEANING...........................523
INSPECTION.........................523
ASSEMBLY...........................525
INSTALLATION........................534
SPECIFICATIONS
TRANSFER CASE - NV244 GENII........535
SPECIAL TOOLS
TRANSFER CASE - NV244 GENII........535
EXTENSION HOUSING SEAL
REMOVAL............................536
INSTALLATION........................536FLUID
STANDARD PROCEDURE - FLUID DRAIN AND
REFILL............................537
FRONT OUTPUT SHAFT SEAL
REMOVAL............................537
INSTALLATION........................538
MODE SENSOR
DESCRIPTION........................538
OPERATION..........................539
SELECTOR SWITCH
DESCRIPTION........................539
OPERATION..........................540
SHIFT MOTOR
DESCRIPTION........................541
OPERATION..........................541
REMOVAL............................541
INSTALLATION........................541
TRANSFER CASE - NV244
GENII
DESCRIPTION
The NV244 GENII is an electronically controlled
full and part-time transfer case with no two wheel
drive operation.
A differential in the transfer case is used to control
torque transfer to the front and rear axles. A low
range gear reduction system provides increased low
speed torque capability for off road operation. The
low range provides a 2.72:1 reduction ratio.
The geartrain is mounted in two aluminum case
halves attached with bolts. The mainshaft front and
rear bearings are mounted in aluminum retainer
housings bolted to the case halves.
OPERATING RANGES
NV244 GENII operating ranges are:
²AWD(All-Wheel Drive)
²4HI (Part-time)
²4LO
²NEUTRAL
The AWD mode can be used at any time and on
any road surface.The 4HI (Part-time) and 4LO ranges are for off
road use only. The only time these ranges can be
used is when the road surface is covered with snow,
ice, or other loose slippery material.
SHIFT MECHANISM
Operating ranges are selected with a dash
mounted shift selector switch. The shift selector
switch provides a input to the Transfer Case Control
Module (TCCM) to indicate the driver's desire to
change operating ranges. The TCCM uses this input,
along with the input from the transfer case mounted
mode sensor and information from the vehicle's bus,
to determine if a shift is permitted. If the TCCM
decides the shift is permitted, the TCCM controls the
shift motor, mounted to the exterior of the transfer
case, to perform the shift.
21 - 512 TRANSFER CASE - NV244 GENIIDR

TRANSFER CASE - NV273
TABLE OF CONTENTS
page page
TRANSFER CASE - NV273
DESCRIPTION........................542
OPERATION..........................543
DIAGNOSIS AND TESTING - TRANSFER
CASE - NV273.......................543
REMOVAL............................544
DISASSEMBLY........................544
CLEANING...........................554
INSPECTION.........................554
ASSEMBLY...........................556
INSTALLATION........................568
SPECIFICATIONS
TRANSFER CASE - NV273.............568
SPECIAL TOOLS
TRANSFER CASE NV271/NV273.........569
EXTENSION HOUSING SEAL AND DUST BOOT
REMOVAL............................571
INSTALLATION........................571FLUID
STANDARD PROCEDURE - FLUID DRAIN AND
REFILL............................571
FRONT OUTPUT SHAFT SEAL
REMOVAL............................572
INSTALLATION........................572
MODE SENSOR
DESCRIPTION........................573
OPERATION..........................573
SELECTOR SWITCH
DESCRIPTION........................574
OPERATION..........................574
SHIFT MOTOR
DESCRIPTION........................575
OPERATION..........................575
REMOVAL............................575
INSTALLATION........................575
TRANSFER CASE - NV273
DESCRIPTION
The NV273 is an electronically controlled part-time
transfer case with a low range gear reduction system.
The NV273 has three operating ranges plus a NEU-
TRAL position. The low range system provides a gear
reduction ratio for increased low speed torque capa-
bility.
The geartrain is mounted in two aluminum case
halves attached with bolts. The mainshaft front and
rear bearings are mounted in aluminum case halves.
OPERATING RANGES
Transfer case operating ranges are:
²2WD (2-wheel drive)
²4HI (4-wheel drive)
²4LO (4-wheel drive low range)
²NEUTRAL
The 2WD range is for use on any road surface at
any time.The 4HI 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 wet or slip-
pery or covered by ice and snow.
The low range reduction gear system is operative
in 4LO range only. This range is for extra pulling
power in off road situations. Low range reduction
ratio is 2.72:1.
SHIFT MECHANISM
Operating ranges are selected with a dash
mounted shift selector switch. The shift selector
switch provides a input to the Transfer Case Control
Module (TCCM) to indicate the driver's desire to
change operating ranges. The TCCM uses this input,
along with input from the transfer case mounted
mode sensor and information from the vehicle's bus,
to determine if a shift is permitted. If the TCCM
decides the shift is permitted, the TCCM controls the
shift motor, mounted to the exterior of the transfer
case, to perform the shift.
21 - 542 TRANSFER CASE - NV273DR

TIRES/WHEELS
TABLE OF CONTENTS
page page
TIRES/WHEELS
DIAGNOSIS AND TESTING - TIRE AND
WHEEL RUNOUT......................1
STANDARD PROCEDURE
STANDARD PROCEDURE - TIRE ROTATION . 3
STANDARD PROCEDURE - MATCH
MOUNTING...........................3
STANDARD PROCEDURE - TIRE AND
WHEEL BALANCE......................4
TIRES
DESCRIPTION
DESCRIPTION - SPARE TIRE /
TEMPORARY.........................6
DESCRIPTION - TIRES..................6
DESCRIPTION - RADIAL ± PLY TIRES......6
DESCRIPTION - TIRE PRESSURE FOR
HIGH SPEEDS.........................7
DESCRIPTION - REPLACEMENT TIRES.....7
DESCRIPTION - TIRE INFLATION
PRESSURES..........................7
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - PRESSURE
GAUGES.............................7
DIAGNOSIS AND TESTING - TIRE NOISE
OR VIBRATION........................7
DIAGNOSIS AND TESTING - TREAD WEAR
INDICATORS..........................8
DIAGNOSIS AND TESTING - TIRE WEAR
PATTERNS...........................8
DIAGNOSIS AND TESTING - TIRE/VEHICLE
LEAD................................8STANDARD PROCEDURE - REPAIRING
LEAKS..............................10
SPECIFICATIONS
TIRE REVOLUTIONS PER MILE..........10
WHEELS
DESCRIPTION.........................11
OPERATION...........................11
DIAGNOSIS AND TESTING
WHEEL INSPECTION..................11
STANDARD PROCEDURE
STANDARD PROCEDURE - WHEEL
REPLACEMENT.......................12
STANDARD PROCEDURE - DUAL REAR
WHEEL INSTALLATION.................12
SPECIFICATIONS
TORQUE CHART......................13
STUDS
REMOVAL.............................14
INSTALLATION.........................14
WHEEL COVER
REMOVAL.............................14
INSTALLATION
INSTALLATION - REAR.................14
INSTALLATION - FRONT................14
SPARE TIRE
DESCRIPTION
DESCRIPTION - SPARE / TEMPORARY
TIRE...............................15
DESCRIPTION - FULL SIZE, SPARE WHEEL
WITH MATCHING TIRE.................15
TIRES/WHEELS
DIAGNOSIS AND TESTING - TIRE AND WHEEL
RUNOUT
Radial runout is the difference between the high
and low points on the tire or wheel (Fig. 1).
Lateral runout is thewobbleof the tire or wheel.
Radial runout of more than 1.5 mm (.060 inch)
measured at the center line of the tread may cause
the vehicle to shake.Lateral runout of more than 2.0 mm (.080 inch)
measured near the shoulder of the tire may cause the
vehicle to shake.
Sometimes radial runout can be reduced. Relocate
the wheel and tire assembly on the mounting studs
(See Method 1). If this does not reduce runout to an
acceptable level, the tire can be rotated on the wheel.
(See Method 2).
DRTIRES/WHEELS 22 - 1

BODY
TABLE OF CONTENTS
page page
BODY
WARNING
SAFETY PRECAUTIONS AND WARNINGS . . . 1
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - WATER LEAKS . 1
DIAGNOSIS AND TESTING - WIND NOISE . . . 2
STANDARD PROCEDURE
STANDARD PROCEDURE - BODY
LUBRICATION.........................3
STANDARD PROCEDURE - HEAT STAKING . . 3
STANDARD PROCEDURE - PLASTIC BODY
PANEL REPAIR........................3
STANDARD PROCEDURE - BUZZ, SQUEAK
& RATTLE...........................11
SPECIFICATIONS - TORQUE..............12SPECIAL TOOLS
BODY..............................14
TAILGATE..............................15
DOOR - FRONT.........................18
DOORS - REAR.........................28
EXTERIOR.............................36
HOOD.................................46
INSTRUMENT PANEL.....................49
INTERIOR..............................62
PAINT.................................73
SEATS................................75
STATIONARY GLASS.....................86
WEATHERSTRIP/SEALS...................91
BODY STRUCTURE......................95
BODY
WARNING
SAFETY PRECAUTIONS AND WARNINGS
WARNING: USE AN OSHA APPROVED BREATHING
FILTER WHEN SPRAYING PAINT OR SOLVENTS IN
A CONFINED AREA. PERSONAL INJURY CAN
RESULT.
²AVOID PROLONGED SKIN CONTACT WITH
PETROLEUM OR ALCOHOL ± BASED CLEANING
SOLVENTS. PERSONAL INJURY CAN RESULT.
²DO NOT STAND UNDER A HOISTED VEHICLE
THAT IS NOT PROPERLY SUPPORTED ON SAFETY
STANDS. PERSONAL INJURY CAN RESULT.
CAUTION: When holes must be drilled or punched
in an inner body panel, verify depth of space to the
outer body panel, electrical wiring, or other compo-
nents. Damage to vehicle can result.
²Do not weld exterior panels unless combustible
material on the interior of vehicle is removed from
the repair area. Fire or hazardous conditions, can
result.
²Always have a fire extinguisher ready for use
when welding.
²Disconnect the negative (-) cable clamp from
the battery when servicing electrical components
that are live when the ignition is OFF. Damage to
electrical system can result.²Do not use abrasive chemicals or compounds
on painted surfaces. Damage to finish can result.
²Do not use harsh alkaline based cleaning sol-
vents on painted or upholstered surfaces. Damage
to finish or color can result.
²Do not hammer or pound on plastic trim panel
when servicing interior trim. Plastic panels can
break.
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - WATER LEAKS
Water leaks can be caused by poor sealing,
improper body component alignment, body seam
porosity, missing plugs, or blocked drain holes. Cen-
trifugal and gravitational force can cause water to
drip from a location away from the actual leak point,
making leak detection difficult. All body sealing
points should be water tight in normal wet-driving
conditions. Water flowing downward from the front of
the vehicle should not enter the passenger or luggage
compartment. Moving sealing surfaces will not
always seal water tight under all conditions. At
times, side glass or door seals will allow water to
enter the passenger compartment during high pres-
sure washing or hard driving rain (severe) condi-
tions. Overcompensating on door or glass
adjustments to stop a water leak that occurs under
severe conditions can cause premature seal wear and
excessive closing or latching effort. After completing
a repair, water test vehicle to verify leak has stopped
before returning vehicle to use.
DRBODY 23 - 1

STANDARD PROCEDURE - BUZZ, SQUEAK &
RATTLE
Buzz, Squeak & Rattles (BSR) may be caused by
any one or more of the following and may be cor-
rected as indicated:
²Loose fasteners should be tightened to specifica-
tions.
²Damaged or missing clips should be replaced.
²Damaged trim panels should be replaced.²Incorrectly installed trim panels should be rein-
stalled properly.
Many BSR complaints such as loose trim, can be
serviced using the MopartParts BSR Noise Reduc-
tion Kit. This kit contains various tapes including
foam, flock and anti-squeak used to eliminate noises
caused by metal, plastic and vinyl components. Long
life lubricants and greases can also be used on a vari-
ety of components. Refer to the Buzz, Squeak & Rat-
tle Kit table for material contents and usage.
BUZZ, SQUEAK & RATTLE KIT
ITEM FEATURES APPLICATIONS SERVICE TEMP
Itch And Squeak
TapeAn abrasion resistant material
thin enough to conform to most
irregular surfaces. Stops most
itches and squeaks.Between metal and metal,
metal and plastic, metal and
vinyl, vinyl and plastic. Interior.
Examples: Trim panels and
bezels.-40É to 225É
Fahrenheit
(-40É to 107É
Celsius)
Black Nylon Flock Nylon Flock with an aggressive
acrylic adhesive. Provides for
cushioning and compression fit,
also isolates components.
Water-resistant.Between metal and metal,
metal and plastic, vinyl and
plastic.
Examples: Pull cups, bezels,
clips, ducts, top cover to glass,
cowl panel.-40É to 180É
Fahrenheit
(-40É to 82É Celsius)
High Density
Urethane FoamTear resistant, highly resilient
and durable.Between metal and metal,
metal and plastic. Water-
resistant.
Examples: I/P, heavy metal
rattles, isolating brackets.-40É to 180É
Fahrenheit
(-40É to 82É Celsius)
Open Cell Foam
TapeSoft foam conforms to irregular
surfaces.Wire harness and connector
wrap.
Examples: Seals, gasket,
wiring, heat ducts.-40É to 180É
Fahrenheit
(-40É to 82É Celsius)
Closed Cell Low
Density Foam TapeSoft, conformable. Water-
resistant.Wherever bulk is needed.
Prevents closing flutters and
rattles when applied to door
watershield.
Examples: Door, I/P.-40É to 180É
Fahrenheit
(-40É to 82É Celsius)
NYETGrease 880 Long life. Suspensions.
Examples: Strut busings, sway
bars.-40É to 390É
Fahrenheit
(-40É to 200É
Celsius)
KrytoxTOil Long life. Will not dry out or
harm plastics or rubber.When access is not possible, oil
will migrate to condition. Vinyl,
rubber, plastic, metal.
Examples: Convertible top
bushings, pull cups trim panel
inserts.-30É to 400É
Fahrenheit
(-34É to 205É
Celsius)
KrytoxTGrease Long life. Will not dry out or
harm plastics or rubber.Vinyl, rubber, plastic, metal,
glass.
Examples: Weather-strips,
backlite and windshield
moldings.-30É to 400É
Fahrenheit
(-34É to 205É
Celsius)
DRBODY 23 - 11
BODY (Continued)

TAILGATE
TABLE OF CONTENTS
page page
CHECK CABLE
REMOVAL.............................15
INSTALLATION.........................15
COVER
REMOVAL.............................16
INSTALLATION.........................16
HINGE
REMOVAL.............................16
INSTALLATION.........................16
LATCH
REMOVAL.............................16INSTALLATION.........................16
LATCH STRIKER
REMOVAL.............................16
INSTALLATION.........................17
RELEASE HANDLE/LATCH REMOTE
REMOVAL.............................17
INSTALLATION.........................17
TAILGATE
REMOVAL.............................17
INSTALLATION.........................17
CHECK CABLE
REMOVAL
(1) Open tailgate.
(2) Pry lock tab outward to clear stud head on
cargo box (Fig. 1).
(3) Push cable end forward until stud head is in
clearance hole portion of cable end.
(4) Separate cable end from stud.
(5) Remove screw attaching cable to tailgate. (Fig.
2)
(6) Separate check cable from tailgate.
INSTALLATION
(1) Position check cable on tailgate.
(2) Install bolt attaching small end of cable to tail-
gate.
(3) Tighten tailgate check cable bolt to 23 N´m (17
ft. lbs.).
(4) Position large end of cable onto stud head and
slide downward to secure lock tab.
Fig. 1 Tailgate Check
1 - TAILGATE STRIKER
2 - SCREW DRIVER
3 - TAILGATE CHECK CABLE
4 - LOCK TAB
Fig. 2 LATCH HANDLE - LATCH
1 - EXTERIOR HANDLE
2 - CONTROL ASSEMBLY
3 - NUTS (2)
4 - TAILGATE
5-LATCH
6 - CHECK CABLE
7 - CHECK/LATCH BOLT
8 - LATCH BOLT
DRTAILGATE 23 - 15

DOOR - FRONT
TABLE OF CONTENTS
page page
DOOR
REMOVAL.............................18
INSTALLATION.........................18
ADJUSTMENTS
ADJUSTMENT........................19
DOOR GLASS
REMOVAL.............................20
INSTALLATION.........................20
EXTERIOR HANDLE
REMOVAL.............................20
INSTALLATION.........................21
GLASS RUN CHANNEL
REMOVAL.............................21
INSTALLATION.........................22
HINGE
REMOVAL.............................22
INSTALLATION.........................22
INSIDE HANDLE ACTUATOR
REMOVAL.............................22
INSTALLATION.........................22
LATCH
REMOVAL.............................23
INSTALLATION.........................23
ADJUSTMENTS
ADJUSTMENT........................23LATCH STRIKER
REMOVAL.............................23
INSTALLATION.........................23
ADJUSTMENTS
ADJUSTMENT........................24
LOCK CYLINDER
REMOVAL.............................24
INSTALLATION.........................24
TRIM PANEL
REMOVAL.............................24
INSTALLATION.........................24
WATERDAM
REMOVAL.............................25
INSTALLATION.........................25
WINDOW REGULATOR - POWER
REMOVAL.............................25
INSTALLATION.........................26
WINDOW REGULATOR - MANUAL
REMOVAL.............................26
INSTALLATION.........................27
SIDE VIEW MIRROR FLAG
REMOVAL.............................27
INSTALLATION.........................27
DOOR
REMOVAL
(1) Disconnect the door wire harness electrical con-
nector at the A-pillar. (Fig. 1)
(2) Using a grease pencil or equivalent, mark the
outline of the door hinges on the door to aid in instal-
lation.
(3) Support the door with a suitable lifting device.
NOTE: The epoxy bonded washers should not be
seperated from the hinge. If the washers are
removed the door may have to be re-adjusted.
(4) Remove the nuts and bolts attaching the door
hinges to the door.
INSTALLATION
(1) Support the door with a suitable lifting device
and install the door onto the hinges.
(2) Install the washers, if there were removed pre-
viously, nuts and tighten to 28 N´m (21 ft. lbs.).
(3) Connect the electrical connectors.
(4) Adjust the door as necessary. (Refer to 23 -
BODY/DOOR - FRONT/DOOR - ADJUSTMENTS)
23 - 18 DOOR - FRONTDR