shift JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual

FRONT OUTPUT SHAFT AND DRIVE CHAIN
(1) Remove oil pickup tube from rear case (Fig.
17).
(2) Remove drive gear snap-ring (Fig. 18).
(3) Disengage drive gear (Fig. 18). Pry gear
upward and off mainshaft as shown.
(4) Remove front output shaft, drive chain and
drive gear as assembly (Fig. 18).
(5) Remove output shaft drive gear snap ring.
(6) Remove output shaft drive gear from output
shaft.
SHIFT FORKS AND MAINSHAFT
(1) Remove detent plug, O-ring, detent spring and
detent plunger (Fig. 19).
(2) Remove shift rail from shift fork and transfer
case housing.
(3) Rotate range shift fork until it disengages from
shift sector.
(4) Remove mainshaft and shift fork from input
gear pilot bearing.
NOTE: Loose needle bearings are used to support
the drive sprocket hub on the mainshaft. Do not lift
mainshaft by drive sprocket hub or needle bearings
will become dislodged.
(5) Wrap rag around mainshaft underneath drive
sprocket hub and remove drive sprocket hub from
mainshaft. Be sure to retrieve all the drive sprocket
hub needle bearings.
(6) Remove snap ring holding clutch sleeve onto
mainshaft.
Fig. 17 Oil Pickup Tube Removal
1 - OIL PICKUP TUBE
Fig. 18 Front Output Shaft, Drive Gear And Chain
Removal
1 - REAR HOUSING
2 - OUTPUT SHAFT AND SPROCKET
3 - MAINSHAFT SPROCKET
4 - SNAP-RING
5 - DRIVE CHAIN
Fig. 19 Detent Plug, Spring And Plunger Removal
1 - DETENT PLUG
2 - DETENT SPRING
3 - DETENT PLUNGER
4 - PLUG O-RING
WJTRANSFER CASE - NV247 21 - 321
TRANSFER CASE - NV247 (Continued)

(7) Remove range clutch sleeve, blockout spring,
locking clutch, and locking clutch spring from main-
shaft (Fig. 20).
(8) Remove shift sector. Rotate and tilt sector as
needed to remove it (Fig. 21).
(9) Remove shift sector bushing and O-ring (Fig.
22).
INPUT GEAR/LOW RANGE ASSEMBLY
(1) Turn front case on side so front bearing
retainer is accessible.
(2) Remove front bearing retainer bolts (Fig. 23).
(3) Remove front bearing retainer as follows:(a) Loosen retainer with flat blade screwdriver
to break sealer bead.To avoid damaging case
and retainer, position screwdriver blade only
in slots provided in retainer (Fig. 24).
(b) Then remove retainer from case and gear.
Fig. 20 Range Clutch Sleeve, Blockout Spring,
Locking Clutch and Spring
1 - LOCKING CLUTCH SPRING
2 - BLOCKOUT SPRING
3 - SNAP-RING
4 - RANGE CLUTCH SLEEVE
5 - LOCKING CLUTCH
6 - DRIVE SPROCKET HUB
Fig. 21 Shift Sector Removal
1 - SHIFT SECTOR
Fig. 22 Sector Bushing And O-Ring Removal
1 - SHIFT SECTOR BUSHING
2 - O-RING
Fig. 23 Front Bearing Retainer Bolt Removal
1 - FRONT BEARING RETAINER
21 - 322 TRANSFER CASE - NV247WJ
TRANSFER CASE - NV247 (Continued)

INPUT AND LOW RANGE GEARS
Inspect the low range gear pinions and pinion pins.
Replace the low range gear if any of the pins or pin-
ions are worn or damaged.
Inspect the thrust washers, retainer, and snap-
ring. Replace the snap-ring if bent, or distorted.
Replace the thrust washers and retainer if worn,
cracked or damaged in any way.
Examine the input gear carefully. Be sure the gear
teeth and bearing surfaces are in good condition.
Replace the gear if wear or damage is evident.
Check the input gear pilot bearing. Rotate the
bearing and check for roughness or noise. Also check
bearing position in the bore. The bearing should be
recessed approximately 2.5 mm (0.100 in.) below the
top edge of the bore. The bearing should not be
seated at the bottom of the bore. Replace the bearing
if worn, or roughness is evident. Replace both the
gear and bearing if the bearing is a loose fit in the
bore.
GEAR CASE AND RETAINERS
Examine both case halves and retainers carefully.
Replace any retainer or case half if wear, cracks, or
other damage is evident.
Check condition of the low range annulus gear and
the shift rail bushing in the front case (Fig. 32). The
low range annulus gear is not a serviceable part.
Replace the gear and case as an assembly if the gear
is loose, worn, or damaged. The shift rail bushing is
a serviceable part and can be replaced if necessary.
Check the bushing in the rear retainer. Replace the
bushing if worn or scored.
Examine the sealing surfaces of both case halves
and retainers. Small burrs, or scratches on these sur-
faces can be reduced with crocus cloth or a fine tooth
file.
Examine condition of the shift rail bushing in the
front case. If the bushing is worn or damaged, it can
be removed with a blind hole type puller. A replace-
ment bushing can be installed with a suitable size
driver. Recess the bushing slightly below the edge of
the bore but do not seat it all the into the case.
GEARTRAIN
Inspect the mainshaft splines, gear teeth and bear-
ing surfaces carefully for evidence of wear, or dam-
age. Replace the shaft if necessary. do not attempt to
salvage it if damaged.
The shift rail and range fork are an assembly.
Replace both parts if either is damaged. However, the
nylon pads in the fork can be replaced if worn, or
cracked.
Inspect the transfer case snap-rings closely. Do not
attempt to salvage a distorted snap-ring by straight-ening or reshaping it. Replace any snap-ring that is
distorted, or worn.
Inspect the low range gear, input gear and the gear
thrust washers retainer, and snap-ring. The low
range gear is serviced as an assembly only. Replace
the gear if the case or pinions are damaged.
During inspection, also make sure the seal surface
of the input gear is in good condition. Minor nicks on
this surface can be reduced with crocus cloth. How-
ever, replace the gear if the seal surface is severely
scored or worn.
OIL PUMP AND PROGRESSIVE COUPLING
The oil pump and progressive coupling are not ser-
viceable components. Replace the coupling as an
assembly if it is damaged. Replace the oil pump as
an assembly if the gear teeth are worn, or if the
pump has become damaged.
BEARINGS AND SEALS
The transfer case seals should be replaced during
overhaul. Use new seals in the input gear bearing
retainer, front case and rear retainer. Also replace
the yoke seal washer and the detent plug O-ring.
Check condition of each transfer case bearing.
Replace any bearing exhibiting signs of roughness,
wear, or damage.
Fig. 32 Low Range Annulus Gear Location
1 - LOW RANGE ANNULUS GEAR
2 - SHIFT RAIL BUSHING
WJTRANSFER CASE - NV247 21 - 325
TRANSFER CASE - NV247 (Continued)

(7) Install snap-ring to hold input/low range gear
into front bearing (Fig. 47).
(8) Clean gasket sealer residue from retainer and
inspect retainer for cracks or other damage.
(9) Applya3mm(1/8 in.) bead of Mopartgasket
maker or silicone adhesive to sealing surface of
retainer.
(10) Align cavity in seal retainer with fluid return
hole in front of case.
CAUTION: Do not block fluid return cavity on seal-
ing surface of retainer when applying MoparTgas-
ket maker or silicone adhesive sealer. Seal failure
and fluid leak can result.
(11) Install bolts to hold retainer to transfer case
(Fig. 48). Tighten to 21 N´m (16 ft. lbs.) of torque.SHIFT FORKS AND MAINSHAFT
(1) Install new sector shaft O-ring and bushing
(Fig. 49).
(2) Install shift sector (Fig. 50).
(3) Install locking clutch spring, locking clutch,
blockout spring, and range clutch sleeve, to main-
shaft as shown in (Fig. 51). Install snap ring.
(4) Install drive sprocket hub to mainshaft and
manually load the needle bearings.
(5) Install new pads on range fork, if necessary.
Fig. 47 Install Input Gear Snap-Ring
1 - INPUT GEAR
2 - SNAP-RING
Fig. 48 Install Front Bearing Retainer
1 - FRONT BEARING RETAINER
Fig. 49 Sector O-Ring And Bushing Installation
1 - SECTOR BUSHING
2 - O-RING
Fig. 50 Shift Sector Installation
1 - SHIFT SECTOR
21 - 330 TRANSFER CASE - NV247WJ
TRANSFER CASE - NV247 (Continued)

(6) Install range shift fork to range clutch sleeve.
Install mainshaft/range shift fork assembly into
transfer case and input planetary assembly. Rotate
fork until it engages with slot in shift sector.
(7) Install shift rail to shift range fork and trans-
fer case housing.
(8) Rotate shift sector to NEUTRAL position.
(9) Install new O-ring on detent plug (Fig. 52).
(10) Lubricate detent plunger with transfer case
lubricant or light coat of petroleum jelly.
(11) Install detent plunger, spring and plug (Fig.
52).
(12)
Verify that plunger is properly engaged in sector.
FRONT OUTPUT SHAFT AND DRIVE CHAIN
(1) Lubricate front output shaft-sprocket assembly,
drive chain and drive sprocket with transfer case
lubricant.
(2) Assemble drive chain, drive sprocket and front
output shaft (Fig. 53).
(3) Start drive sprocket on mainshaft.
(4) Guide front shaft into bearing and drive
sprocket onto mainshaft drive gear (Fig. 53).
(5) Install drive sprocket snap-ring (Fig. 54).
Fig. 51 Range Clutch Sleeve, Blockout Spring,
Locking Clutch and Spring
1 - LOCKING CLUTCH SPRING
2 - BLOCKOUT SPRING
3 - SNAP-RING
4 - RANGE CLUTCH SLEEVE
5 - LOCKING CLUTCH
6 - DRIVE SPROCKET HUB
Fig. 52 Shift Detent Components
1 - DETENT PLUG
2 - DETENT SPRING
3 - DETENT PLUNGER
4 - PLUG O-RING
Fig. 53 Installing Drive Chain, Front Output Shaft
And Drive Sprocket
1 - FRONT OUTPUT SHAFT
2 - DRIVE CHAIN
3 - MAINSHAFT
4 - DRIVE GEAR
WJTRANSFER CASE - NV247 21 - 331
TRANSFER CASE - NV247 (Continued)

(6) Connect front propeller shaft and install rear
propeller shaft. (Refer to 3 - DIFFERENTIAL &
DRIVELINE/PROPELLER SHAFT/PROPELLER
SHAFT - INSTALLATION)
(7) Fill transfer case with correct fluid. Check
transmission fluid level. Correct as necessary.
(8) Install rear crossmember (Fig. 71) and skid
plate, if equipped. Tighten crossmember bolts to 41
N´m (30 ft. lbs.) torque.
(9) Remove transmission jack and support stand.
(10) Verify transfer case is in NEUTRAL. Connect
shift cable to transfer case range lever.
(11) Lower vehicle and verify transfer case shift
operation.
(12) Adjust the transfer case shift cable, if neces-
sary.
SPECIFICATIONS
TRANSFER CASE - NV247
TORQUE SPECIFICATIONS
DESCRIPTION N´m Ft. Lbs. In. Lbs.
Bolt, crossmember 41-47 30.2-34.7 -
Plug, Detent 16-24 11.8-17.7 -
Plugs, drain/fill 20-34 15-25 -
Bolts, front brg. retainer 16-24 11.8-17.7 -
Bolts, case half 27-34 19.9-25 -
Nut, companion flange 122-176 90-130 -
Bolts, rear extension 27-34 19.9-25 -
Lock-nut, shift 27-34 19.9-25 -
Nuts, T-case mount stud 33-41 24.3-30.2 -
Fig. 71 Crossmember Installation
1 - CROSSMEMBER
2 - REAR TRANSMISSION MOUNT
21 - 336 TRANSFER CASE - NV247WJ
TRANSFER CASE - NV247 (Continued)

SHIFT CABLE
REMOVAL
(1) Shift transfer case into NEUTRAL.
(2) Raise vehicle.
(3) Disconnect the shift cable eyelet from the
transfer case shift lever (Fig. 78).
(4) Remove shift cable from the cable support
bracket.
(5) Lower vehicle.
(6) Remove any necessary console parts for access
to shift lever assembly and shift cable.
(7) Disconnect cable at shift lever and shifter
assembly bracket (Fig. 79).
(8) Remove the nuts holding the shift cable seal
plate to the floor pan (Fig. 80).
(9) Pull cable through floor panel opening.
(10) Remove transfer case shift cable from vehicle.
INSTALLATION
(1) Route cable through hole in floor pan.
(2) Install seal plate to studs in floor pan.
(3) Install nuts to hold seal plate to floor pan (Fig.
80). Tighten nuts to 7 N´m (65 in.lbs.).
(4) Install the transfer case shift cable to the
shifter assembly bracket. Seat cable in bracket and
install clip (Fig. 79).
(5) Verify the transfer case shift lever (at console)
is in the NEUTRAL position.
(6) Snap the cable onto the shift lever pin (Fig.
79).
(7) Raise the vehicle.(8) Install the shift cable to the shift cable support
bracket and install clip (Fig. 78).
(9) Verify that the transfer case is still in the
NEUTRAL position.
(10) Snap the shift cable onto the transfer case
shift lever (Fig. 78).
(11) Lower vehicle.
(12) Verify correct transfer case operation in all
ranges.
(13) Install any console parts removed for access to
transfer case shift cable.
Fig. 78 Transfer Case Shift Cable at Transfer Case
1 - TRANSFER CASE SHIFT LEVER
2 - TRANSFER CASE SHIFT CABLE
Fig. 79 Transfer Case Shift Cable at Shifter
1 - CLIP
2 - SHIFTER
3 - TRANSFER CASE SHIFT LEVER PIN
4 - TRANSFER CASE SHIFT CABLE
Fig. 80 Shift Cables at Floor Pan
1 - SEAL PLATES
2 - TRANSMISSION SHIFT CABLE
3 - TRANSFER CASE SHIFT CABLE
21 - 340 TRANSFER CASE - NV247WJ

(12) Remove the screw that secures the lower tilt-
ing steering column shroud to the steering column
multi-function switch mounting housing (Fig. 2).
(13) Unsnap the two halves of the tilting steering
column shroud from each other and remove both
halves from the steering column.
(14) Disconnect the instrument panel wire harness
connectors from the following steering column compo-
nents (Fig. 3):
²the two lower clockspring connector receptacles
²the left multi-function switch connector recepta-
cle
²the right multi-function switch connector recep-
tacle
²the two ignition switch connector receptacles
²the shifter interlock solenoid connector recepta-
cle
²if the vehicle is so equipped, the Sentry Key
Immobilizer Module (SKIM) connector receptacle.
(15) Turn the ignition switch to the On position,
then release and remove the shifter interlock cable
connector from the ignition lock housing receptacle.
(16) Turn the ignition switch back to the Lock
position to prevent steering wheel rotation and theloss of clockspring centering following steering col-
umn removal.
(17) Remove the bolt that secures the coupler to
the lower steering column shaft (Fig. 4).
Fig. 2 Steering Column Shrouds Remove/Install
1 - UPPER TILTING COLUMN SHROUD
2 - FIXED COLUMN SHROUD
3 - LOWER TILTING COLUMN SHROUD
4 - SCREW
Fig. 3 Steering Column Connections
1 - LEFT MULTIFUNCTION SWITCH CONNECTOR
2 - LOWER CLOCKSPRING CONNECTORS
3 - RIGHT MULTIFUNCTION SWITCH CONNECTOR
4 - SHIFTER INTERLOCK CABLE CONNECTOR
5 - SHIFTER INTERLOCK SOLENOID CONNECTOR
6 - IGNITION SWITCH CONNECTOR RECEPTACLES
7 - SKIM CONNECTOR
Fig. 4 Steering Column Mounting
1 - COLUMN MOUNTING NUTS
2 - COUPLER BOLT
23 - 38 INSTRUMENT PANEL SYSTEMWJ
INSTRUMENT PANEL SYSTEM (Continued)

(18) Remove the four nuts that secure the steering
column to the studs on the instrument panel steering
column support bracket.
(19) Remove the steering column from the instru-
ment panel. Be certain that the steering wheel is
locked and secured from rotation to prevent the loss
of clockspring centering.
(20) Disconnect the left and right body wire har-
ness connectors, the Ignition Off Draw (IOD) wire
harness connector and the fused B(+) wire harness
connector from the connector receptacles of the JB
(Fig. 5).(21) Disconnect the instrument panel wire harness
connectors from the following floor panel transmis-
sion tunnel components (Fig. 6):
²the Airbag Control Module (ACM) connector
receptacle
²the park brake switch terminal
²the transmission shifter connector receptacle.
(22) Remove the two nuts that secure the instru-
ment panel wire harness ground eyelets to the studs
on the floor panel transmission tunnel in front of and
behind the ACM.
(23) Disengage the retainers that secure the
instrument panel wire harness to the floor panel
transmission tunnel.
(24) Remove the instrument panel to center floor
tunnel bracket from the instrument panel and the
floor panel transmission tunnel. (Refer to 23 - BODY/
INSTRUMENT PANEL/IP CENTER FLOOR TUN-
NEL BRACKET - REMOVAL).
(25) Remove the one screw that secures the floor
duct to the heater and air conditioner housing near
the driver side of the floor panel transmission tunnel
and remove the duct from the housing.
(26) If the vehicle is equipped with the manual
heating and air conditioning system, disconnect the
vacuum harness connector located near the driver
side of the floor panel transmission tunnel behind
the driver side floor duct.
(27) Remove the one screw that secures the instru-
ment panel steering column support bracket to the
driver side end of the heater and air conditioner
housing (Fig. 7).
(28) Remove the one screw that secures the instru-
ment panel steering column support bracket to the
intermediate bracket on the driver side dash panel
(Fig. 8).
Fig. 5 Junction Block Connections
1 - SNAP CLIPS
2 - SCREW
3 - CONNECTOR
4 - LEFT BODY WIRE HARNESS
5 - IOD CONNECTOR
6 - FUSED B+ CONNECTOR
7 - RIGHT BODY WIRE HARNESS
8 - SCREW
9 - CONNECTOR
10 - JUNCTION BLOCK
WJINSTRUMENT PANEL SYSTEM 23 - 39
INSTRUMENT PANEL SYSTEM (Continued)

Fig. 6 Floor Panel Transmission Tunnel
1 - AIRBAG CONTROL MODULE CONNECTOR
2 - PARK BRAKE SWITCH CONNECTOR
3 - AIRBAG CONTROL MODULE
4 - NUT (2)
5 - STUD
6 - GROUND EYELET7 - RETAINER
8 - STUD
9 - GROUND EYELET
10 - INSTRUMENT PANEL WIRE HARNESS
11 - TRANSMISSION SHIFTER CONNECTOR
Fig. 7 Instrument Panel to Heater-A/C Housing -
Driver Side
1 - HEATER AND AIR CONDITIONER HOUSING
2 - FLOOR DUCT
3 - INSTRUMENT PANEL STEERING COLUMN SUPPORT
BRACKET
4 - SCREW
Fig. 8 Instrument Panel to Intermediate Bracket
Mounting
1 - DASH PANEL
2 - SCREW
3 - INSTRUMENT PANEL STEERING COLUMN SUPPORT
BRACKET
4 - INTERMEDIATE BRACKET
23 - 40 INSTRUMENT PANEL SYSTEMWJ
INSTRUMENT PANEL SYSTEM (Continued)