2002 JEEP GRAND CHEROKEE head

(6) Using Spring Compressor 8250 and a suitable
shop press, compress the 4C piston return spring and
install the snap-ring (Fig. 54).
(7) Assemble and install the 4C clutch pack into
the retainer/bulkhead (Fig. 53) with the steel separa-
tor plate against the piston.
(8) Install the 4C reaction plate and snap-ring into
the retainer/bulkhead (Fig. 53). The 4C reaction plate
is non-directional.
(9) Measure the 4C clutch clearance. The correct
clutch clearance is 0.77-1.39 mm (0.030-0.055 in.).
The snap-ring is selectable. Install the chosen snap-
ring and re-measure to verify the selection.
(10) Install the 2C piston into the retainer/bulk-
head (Fig. 53).
(11) Position the 2C Belleville spring onto the 2C
piston.
(12) Position the 2C Belleville spring snap-ring
onto the 2C Belleville spring (Fig. 53).
(13) Using Spring Compressor 8249 and a suitable
shop press (Fig. 55), compress the belleville spring
until the snap-ring is engaged with the snap-ring
groove in the retainer/bulkhead.
ADAPTER HOUSING SEAL
REMOVAL
(1) Remove the transfer case from the transmis-
sion.
(2) Using a screw mounted on a slide hammer,
remove the adapter housing seal.
INSTALLATION
(1) Clean the adapter seal bore in the adapter
housing of any residue or particles remaining from
the original seal.
(2) Install new oil seal in the adapter housing
using Seal Installer C-3860-A (Fig. 56). A properly
installed seal is flush to the face of the seal bore.
(3) Install the transfer case onto the transmission.
Fig. 54 Compress 4C Piston Return Spring Using
Tool 8250
1 - PRESS
2 - TOOL 8250
Fig. 55 Compress 2C Belleville Spring Using Tool
8249
1 - PRESS
2 - TOOL 8249
Fig. 56 Adapter Housing Seal Installation
1 - TOOL C-3860-A
WJAUTOMATIC TRANSMISSION - 545RFE 21 - 225
4C RETAINER/BULKHEAD (Continued)

HOLDING CLUTCHES
DESCRIPTION
Three hydraulically applied multi-disc clutches are
used to hold some planetary geartrain components
stationary while the input clutches drive others. The
2C, 4C, and Low/Reverse clutches are considered
holding clutches. The 2C and 4C clutches are located
in the 4C retainer/bulkhead (Fig. 66), while the Low/
Reverse clutch is located at the rear of the transmis-
sion case (Fig. 67).
Fig. 66 2C and 4C Clutches
1 - SEAL 8 - REACTION PLATE
2 - 2C PISTON 9 - SNAP-RING
3 - PLATE 10 - RETURN SPRING
4 - DISC 11 - SEAL
5 - 2C BELLEVILLE SPRING 12 - 4C PISTON
6 - SNAP-RING 13 - 4C RETAINER/BULKHEAD
7 - SNAP-RING (SELECT)
WJAUTOMATIC TRANSMISSION - 545RFE 21 - 233

PLANETARY GEARTRAIN
DESCRIPTION
The planetary geartrain is located behind the 4C
retainer/bulkhead, toward the rear of the transmis-
sion. The planetary geartrain consists of three pri-
mary assemblies:
²Reaction (Fig. 102).
²Reverse (Fig. 103).
²Input (Fig. 103).
Fig. 102 Reaction Planetary Geartrain
1 - BEARING NUMBER 8 5 - BEARING NUMBER 7
2 - BEARING NUMBER 9 6 - THRUST PLATE (SELECT)
3 - REACTION PLANETARY CARRIER 7 - BEARING NUMBER 6
4 - REACTION SUN GEAR 8 - REACTION ANNULUS
21 - 258 AUTOMATIC TRANSMISSION - 545RFEWJ

REAR RETAINER - NV242HD
(1) Remove extension housing bolts.
(2) Tap extension housing with plastic or rawhide
mallet to loosen sealer (Fig. 10).
(3) Separate extension housing from rear retainer.
(4) Remove rear bearing snap-ring (Fig. 11).
(5) Remove bolts holding rear retainer to rear case
half.
(6) Loosen rear retainer with pry tool to break
sealer bead. Pry only against retainer boss as shown
(Fig. 12).
(7) Slide retainer off case and output shaft (Fig.
13).
OIL PUMP AND REAR CASE HALF
(1) Remove rear bearing O.D. retaining ring with
snap ring pliers. Then tilt pump and slide it off out-
put shaft (Fig. 14)
(2) Remove pickup tube O-ring from pump (Fig.
15) but do not disassemble pump; it is not a repair-
able part.
(3) Remove seal from oil pump with pry tool.
(4) Remove bolts attaching rear case to front case
(Fig. 16). Note position of the two black finish bolts
at each end of the case. These bolts go through the
case dowels and require a washer under the bolt
head.
Fig. 10 Remove Extension Housing
1 - EXTENSION HOUSING
2 - PLASTIC HAMMER
3 - REAR RETAINER
Fig. 11 Remove the Output Bearing Snap-ring
1 - REAR RETAINER
2 - SNAP-RING
3 - REAR BEARING
Fig. 12 Loosening Rear Retainer
1 - REAR RETAINER
2-TAB(2)
3 - SCREWDRIVER
4-TAB
Fig. 13 Rear Retainer Removal
1 - MAINSHAFT
2 - REAR RETAINER
21 - 284 TRANSFER CASE - NV242WJ
TRANSFER CASE - NV242 (Continued)

(5) Remove rear case from front case (Fig. 17).
Insert screwdrivers into slots cast into each end of
case. Then pry upward to break sealer bead and
remove rear case.
CAUTION: Do not pry on the sealing surface of
either case half as the surfaces will become dam-
aged.
(6) Remove oil pickup tube and screen from rear
case (Fig. 18).
Fig. 14 Oil Pump Removal
1 - OIL PUMP
Fig. 15 Pickup Tube O-Ring Location
1 - OIL PUMP
2 - O-RING
Fig. 16 Spline And Dowel Bolt Locations
1 - DOWEL BOLT AND WASHER (2)
2 - CASE BOLTS
3 - SPLINE HEAD BOLT (1)
Fig. 17 Loosening/Removing Rear Case
1 - MAINSHAFT
2 - SCREWDRIVER
3 - FRONT CASE
4 - SCREWDRIVER
5 - REAR CASE
Fig. 18 Oil Pickup Screen, Hose And Tube Removal
1 - CONNECTING HOSE
2 - PICKUP SCREEN
3 - PICKUP TUBE
WJTRANSFER CASE - NV242 21 - 285
TRANSFER CASE - NV242 (Continued)

(4) Close flip up glass panel and verify proper
operation.
(5)
Install liftgate trim panel, refer to (Refer to 23 -
BODY/DECKLID/HATCH/LIFTGATE/TAILGATE/TRIM
PANEL - INSTALLATION).
FLIP-UP GLASS LATCH
STRIKER
REMOVAL
(1) Raise flip up glass panel.
(2) Mark the position of the handle/striker on the
glass panel.
(3) Remove the screws attaching the handle/striker
to the glass.
INSTALLATION
(1) Position the handle/striker on the glass panel
and align the reference marks.
(2) Install the screws attaching the handle/striker
to the glass panel. Tighten the fasteners to 6 N´m (60
in. lbs.).
FLIP-UP GLASS SWITCH
REMOVAL
(1) Remove license plate lamp housing/trim panel
from liftgate, refer to (Refer to 8 - ELECTRICAL/
LAMPS/LIGHTING - EXTERIOR/LICENSE PLATE
LAMP UNIT - REMOVAL).
(2) Squeeze the locking tabs inward to release the
switch from the housing.
(3) Disconnect the switch harness connector,
remove the switch from the housing.
INSTALLATION
(1) Install switch harness connector.(2) Position switch in housing, snap switch into
place.
(3) Install license plate lamp housing/trim panel
onto liftgate, refer to (Refer to 8 - ELECTRICAL/
LAMPS/LIGHTING - EXTERIOR/LICENSE PLATE
LAMP UNIT - INSTALLATION).
HINGE
REMOVAL
NOTE: It is not necessary to remove the liftgate to
replace one or both hinges. The hinges can be
replaced one at a time.
(1) Open the liftgate. Support the liftgate for ease
of repair.
(2) Remove the liftgate header trim panel.
(3) Mark the hinge location with a grease pencil or
other suitable device.
(4) Remove the hinge screws (Fig. 5).
(5) Remove hinge.
INSTALLATION
NOTE: It is not necessary to remove the liftgate to
replace one or both hinges. The hinges can be
replaced one at a time.
(1) Position the hinge on the roof panel and on the
liftgate. (Use 3MŸ Fast and Firm or equivalent on
the hinge to body mating surfaces as a sealant.
(2) Install and tighten hinge screws at roof panel
to 28N´m (21 ft. lbs.).
(3) Install hinge screws at liftgate. Tighten screws
to 28N´m (21 ft. lbs.).
(4) Install liftgate header trim panel.
(5) Check the liftgate for proper alignment and
operation.
WJDECKLID/HATCH/LIFTGATE/TAILGATE 23 - 7
FLIP-UP GLASS LATCH (Continued)

EXTERIOR
TABLE OF CONTENTS
page page
BODY SIDE MOLDINGS
REMOVAL
REMOVAL±FRONT DOOR...............25
REMOVAL±REAR DOOR................26
REMOVAL±FENDER/QUARTER PANEL.....26
INSTALLATION
INSTALLATION±FRONT DOOR...........26
INSTALLATION±REAR DOOR............26
INSTALLATION±FENDER/QUARTER PANEL . 26
COWL GRILLE
REMOVAL.............................27
INSTALLATION.........................27
D-PILLAR APPLIQUE
REMOVAL.............................27
INSTALLATION.........................27
D-PILLAR AIR EXHAUSTER
REMOVAL.............................27
INSTALLATION.........................27
AIR EXHAUSTER
REMOVAL.............................27
INSTALLATION.........................27
EXTERIOR NAME PLATES
REMOVAL.............................28
INSTALLATION.........................28FRONT FENDER
REMOVAL.............................28
INSTALLATION.........................29
FUEL FILL DOOR
REMOVAL.............................29
INSTALLATION.........................29
GRILLE
REMOVAL.............................29
INSTALLATION.........................29
HEADLAMP MOUNTING MODULE
REMOVAL.............................30
INSTALLATION.........................30
LUGGAGE RACK
REMOVAL.............................30
INSTALLATION.........................31
SIDE VIEW MIRROR GLASS
REMOVAL.............................31
INSTALLATION.........................31
SIDE VIEW MIRROR
REMOVAL.............................31
INSTALLATION.........................31
ROCK RAIL
REMOVAL.............................32
INSTALLATION.........................32
BODY SIDE MOLDINGS
REMOVAL
REMOVAL±FRONT DOOR
(1) Open the front door.
(2) Using a trim stick, pry the upper rear edge off
the door. Continue to the front edge of the front door
(Fig. 1).
(3) Using a heat gun, warm the adhesive tape on
the lower edge of the cladding and pull the cladding
from the door.
Fig. 1 Front Door Cladding
1 - CLADDING
WJEXTERIOR 23 - 25

(3) Install fascia, refer to (Refer to 13 - FRAMES
& BUMPERS/BUMPERS/FRONT FASCIA - INSTAL-
LATION).
HEADLAMP MOUNTING
MODULE
REMOVAL
CAUTION: Take special care when handling the
HMM not to damage the upper mounting tabs. Step
#3 must be performed prior to removing HMM from
the vehicle to prevent damage to HMM.
(1) Remove fascia, refer to (Refer to 13 - FRAMES
& BUMPERS/BUMPERS/FRONT FASCIA - REMOV-
AL).
(2) Remove inner fender liner.
(3) Reach into the wheelhouse opening and disen-
gage the retainer attaching the HMM to each side of
the body.
(4) Remove bolts attaching headlamp mounting
module to body (Fig. 10).
(5) Disconnect headlamp wire harness connectors.
(6) Separate headlamp mounting module from
vehicle.
INSTALLATION
(1) Position headlamp mounting module at vehicle.
(2) Connect headlamp wire harness connectors.
(3) Engage the retainer attaching the HMM to
each side of the body.
(4) Install bolts attaching headlamp mounting
module to body (Fig. 10).
(5) Install inner fender liner.
(6) Install front fascia, refer to (Refer to 13 -
FRAMES & BUMPERS/BUMPERS/FRONT FASCIA
- INSTALLATION).
LUGGAGE RACK
REMOVAL
NOTE: The skid strips are attached to the roof
panel with adhesive.
(1) Using a trim stick, or other suitable device, pry
support cover off.
(2) If necessary, slide the crossbars to expose the
screws attaching the slide rails to the supports.
(3) Remove the screws retaining the slide rails to
the supports.
Fig. 10 Headlamp Mounting Module
1 - CONNECTOR
2 - CONNECTOR3 - MOUNTING BRACKET
4 - HEADLAMP MODULE
23 - 30 EXTERIORWJ
GRILLE (Continued)