Page 2137 of 2627

(11) Assemble and install range fork and hub (Fig.
64). Be sure hub is properly seated in low range gear
and engaged to the input gear.
(12) Align and insert range fork pin in shift sector
slot.
(13) Install the range fork retaining ring.
(14) Install mode fork and shift rail onto the mode
sleeve.
(15) Install the mode fork, sleeve, and shift rail
into the transfer case (Fig. 65).(16) Install mainshaft into the transfer case (Fig.
66). Guide mainshaft through the mode and range
sleeves and into the input gear.
(17) Install the transfer case position sensor (Fig.
67). Tighten the sensor to 20-34 N´m (16-25 ft. lbs.)
torque.
Fig. 64 Install Range Fork And Hub Assembly
1 - RANGE HUB
2 - RANGE FORK
Fig. 65 Install Mode Fork and Shift Rail
1 - MODE FORK
2 - SHIFT RAIL
3 - MODE SLEEVE
Fig. 66 Install Mainshaft
1 - FRONT CASE
2 - MAINSHAFT
Fig. 67 Install Position Sensor
1 - FRONT CASE
2 - POSITION SENSOR
21 - 434 TRANSFER CASE - NV241 GENIIDR
TRANSFER CASE - NV241 GENII (Continued)
Page 2138 of 2627

(18) Install range lever on sector shaft (Fig. 68).
(19) Install washer and nut on sector shaft to
secure shift lever. Apply 1-2 drops MopartLock N'
Seal, or equivalent, to nut threads before installation.
Then tighten nut to 27-34 N´m (20-25 ft. lbs.) torque.
(20) Install new o-ring on detent plug (Fig. 69).
(21) Install detent plunger, spring, and plug (Fig.
70). Tighten the plug to 16-25 N´m (12-18 ft. lbs.).
FRONT OUTPUT SHAFT AND DRIVE CHAIN
(1) Install the front output shaft (Fig. 71) into the
front output shaft bearing.
(2) Install the front output shaft retaining ring
(Fig. 72) onto the output shaft.
(3) Install the new front output shaft seal with
Installer MB991168A
(4) Insert front sprocket in drive chain.
Fig. 68 Install Range Lever Nut
1 - RANGE LEVER
Fig. 69 O-Ring Installation On Detent Plug
1 - O-RING
2 - DETENT PLUG
Fig. 70 Install Detent Plug, Spring, and Plunger
1 - FRONT CASE
2 - DETENT PLUG
3 - DETENT SPRING
4 - DETENT PLUNGER
Fig. 71 Install Front Output Shaft
1 - FRONT CASE
2 - FRONT OUTPUT SHAFT
Fig. 72 Install Front Output Shaft Snap-ring
1 - FRONT OUTPUT SHAFT
2 - SNAP-RING
DRTRANSFER CASE - NV241 GENII 21 - 435
TRANSFER CASE - NV241 GENII (Continued)
Page 2139 of 2627

(5) Install drive chain around mainshaft sprocket
(Fig. 73). Then position front sprocket over front
shaft.
(6) Raise mainshaft about 2.54 cm (one inch) and
seat front sprocket on front output shaft.
(7) If mainshaft and mode sleeve were unseated
during chain installation, align and reseat mainshaft
in input gear and hub.
(8) Install front sprocket retaining ring (Fig. 74).(9) Install spring and cup on shift rail (Fig. 75).
(10) Insert magnet in front case pocket (Fig. 76).
OIL PUMP AND REAR CASE
CAUTION: Do not remove the bolts holding the oil
pump cover to the rear case half. The oil pump
cover is aligned to the rear output shaft inner bear-
ing race and will become mis-aligned if the bolts
are loosened. If the transfer case failure has gener-
ated any debris which may have become trapped in
the oil pump. the rear case and oil pump assembly
MUST be replaced.
(1) Apply bead of MopartGasket Maker, or equiv-
alent, to mating surface of front case. Keep sealer
bead width to maximum of 3/16 inch. Do not use
excessive amount of sealer as excess will be displaced
into case interior.
Fig. 73 Install Front Sprocket and Drive Chain
1 - FRONT DRIVE SPROCKET
2 - DRIVE CHAIN
3 - MAINSHAFT
Fig. 74 Front Sprocket Retaining Ring Installation
1 - FRONT SPROCKET
2 - RETAINING RING
Fig. 75 Shift Rail Spring And Cup Installation
1 - CUP
2 - SPRING
Fig. 76 Case Magnet Installation
1 - MAGNET
2 - CASE POCKET
21 - 436 TRANSFER CASE - NV241 GENIIDR
TRANSFER CASE - NV241 GENII (Continued)
Page 2140 of 2627

(2) Align oil pump with mainshaft and align shift
rail with bore in rear case. Then install rear case and
oil pump assembly (Fig. 77).
(3) Install 4-5 rear case-to front case bolts (Fig. 78)
to hold rear case in position. Tighten bolts snug but
not to specified torque at this time.
CAUTION: Verify that shift rail, and case alignment
dowels are seated before installing any bolts. Case
could be cracked if shaft rail or dowels are mis-
aligned.
(4) Apply LoctiteŸ 242 to remainder of rear case-
to-front case bolt threads and install bolts. Tighten
bolts to 20-27 N´m (15-24 ft. lbs.),
(5) Install rear output bearing snap-ring (Fig. 79)
to output shaft.
SEAL BOOT
(1) Install the front output shaft seal slinger with
Installer 8840. Install the slinger onto the shaft until
the tool contacts the rear of the output shaft.
(2) Install a new seal boot clamp onto the seal
boot.
(3)
Install the seal boot and clamp onto the slinger
hub and tighten the clamp with Crimp Tool C-4975-A.
Fig. 77 Install Rear Case
1 - REAR CASE
2 - FRONT CASE
Fig. 78 Install Case Bolts
1 - REAR CASE
2 - FRONT CASE
3 - BOLT
Fig. 79 Install Output Shaft Retaining Ring
1 - REAR OUTPUT SHAFT
2 - OUTPUT SHAFT BEARING
3 - RETAINING RING
4 - TRANSFER CASE
DRTRANSFER CASE - NV241 GENII 21 - 437
TRANSFER CASE - NV241 GENII (Continued)
Page 2141 of 2627

REAR EXTENSION
(1) Install new seal in rear extension housing seal
with Installer D-163 and Handle C-4171..
(2) Apply bead of MopartGasket Maker, or equiv-
alent, to mating surface of rear extension housing.
Keep sealer bead width to maximum of 3/16 inch. Do
not use excessive amount of sealer as excess could be
displaced into output bearing.
(3) Align and install rear extension on retainer
(Fig. 80).
(4) Apply MopartSilicone Sealer to threads of rear
extension housing bolts. Then install and tighten
bolts to 16-24 N´m (12-18 ft. lbs.) torque.
INSTALLATION
(1) Align and seat transfer case on transmission.
Be sure transfer case input gear splines are aligned
with transmission output shaft. Align splines by
rotating transfer case rear output shaft yoke if nec-
essary. Do not install any transfer case attaching
nuts until the transfer case is completely seated
against the transmission.
(2) Install and tighten transfer case attaching
nuts. Tighten nuts to 30-41 N´m (20-30 ft.lbs.).
(3) Remove jack stand from under transmission.
(4) Align and connect propeller shafts. (Refer to 3 -
DIFFERENTIAL & DRIVELINE/PROPELLER
SHAFT/PROPELLER SHAFT - INSTALLATION)
(5) Connect vent hose and transfer case position
sensor connector.
(6) Connect shift rod to transfer case lever or floor
shift arm. Use channel lock style pliers to press rod
back into lever grommet.
(7) Adjust shift linkage, if necessary.
(8) Fill transfer case with recommended transmis-
sion fluid and install fill plug.
(9) Install skid plate, if equipped. (Refer to 13 -
FRAMES & BUMPERS/FRAME/TRANSFER CASE
SKID PLATE - INSTALLATION)
(10) Lower vehicle
SPECIFICATIONS
TRANSFER CASE - NV241 GENII
TORQUE SPECIFICATIONS
DESCRIPTION N-m Ft. Lbs. In. Lbs.
Plug, Detent 16-24 12-18 -
Plug, Drain/Fill 20-34 15-25 -
Bolt, Extension Housing 16-24 12-18 -
Bolt, Case Half 20-27 15-24 -
Screw, Oil Pump 12-16 8-12 -
Nut, Range Lever 27-34 20-25 -
Sector Support 27-42 20-30 -
Nuts, Mounting 30-41 20-30 -
Position Sensor 20-34 16-25 -
Fig. 80 Install Rear Extension Bolts
1 - EXTENSION HOUSING
2 - TRANSFER CASE
21 - 438 TRANSFER CASE - NV241 GENIIDR
TRANSFER CASE - NV241 GENII (Continued)
Page 2142 of 2627
SPECIAL TOOLS
TRANSFER CASE - NV241/NV243
Handle, Universal - C-4171
Installer, Seal - 6888
Installer, Bearing - 6953
Installer, Seal - C-4210
Remover, Bushing - 6957
Installer, Bushing - 8157
Installer, Seal - D-163
Installer, Seal - 7884
Installer, Bushing - 5066
DRTRANSFER CASE - NV241 GENII 21 - 439
TRANSFER CASE - NV241 GENII (Continued)
Page 2143 of 2627
EXTENSION HOUSING
BUSHING AND SEAL
REMOVAL
(1) Raise and support vehicle.
(2) Remove rear propeller shaft. (Refer to 3 - DIF-
FERENTIAL & DRIVELINE/PROPELLER SHAFT/
PROPELLER SHAFT - REMOVAL)
(3) Using a suitable pry tool or slide-hammer
mounted screw, remove the extension housing seal.
INSTALLATION
(1) Clean fluid residue from sealing surface and
inspect for defects.
(2) Using Installer D-163, install seal in extension
housing (Fig. 81).
(3) Install propeller shaft. (Refer to 3 - DIFFER-
ENTIAL & DRIVELINE/PROPELLER SHAFT/PRO-
PELLER SHAFT - INSTALLATION)
(4) Verify proper transfer case fluid level.
(5) Lower vehicle.
Plug, Extension - C-293-3
Remover - L-4454
Cup - 8148
Installer, Pump Housing Seal - 7888
Fig. 81 Install Rear Seal in Extension Housing
1 - SPECIAL TOOL C-4171
2 - SPECIAL TOOL D-163
21 - 440 TRANSFER CASE - NV241 GENIIDR
TRANSFER CASE - NV241 GENII (Continued)
Page 2144 of 2627

FLUID
STANDARD PROCEDURE - FLUID DRAIN AND
REFILL
The fill and drain plugs are both in the rear case
(Fig. 82).
(1) Raise vehicle.
(2) Position drain pan under transfer case.
(3) Remove drain and fill plugs and drain lubri-
cant completely.
(4) Install drain plug. Tighten plug to 20-34 N´m
(15-25 ft. lbs.).
(5) Remove drain pan.
(6) Fill transfer case to bottom edge of fill plug
opening with MopartATF +4, Automatic Transmis-
sion fluid.
(7) Install and tighten fill plug to 20-34 N´m
(15-25 ft. lbs.).
(8) Lower vehicle.
FRONT OUTPUT SHAFT SEAL
REMOVAL
(1) Remove the front propeller shaft (Refer to 3 -
DIFFERENTIAL & DRIVELINE/PROPELLER
SHAFT/PROPELLER SHAFT - REMOVAL).
(2) Remove the front propeller shaft seal boot
retaining clamp (Fig. 83).
(3) Remove the front propeller shaft seal boot (Fig.
84).
Fig. 83 Remove Boot Clamp
1 - SEAL BOOT
2 - BOOT CLAMP
Fig. 84 Remove Seal Boot
1 - SEAL BOOT
2 - SEAL SLINGER
Fig. 82 Fill/Drain Plug and I.D. Tag Location
1 - I.D. TAG
2 - FILL PLUG
3 - DRAIN PLUG
DRTRANSFER CASE - NV241 GENII 21 - 441