2002 JEEP LIBERTY Skid plate

REMOVAL
(1) Raise and support vehicle.
(2) Remove wheel and tire assemblies.
(3) Remove half shaft hub nuts.
(4) Remove lower control arms. Refer to 2 suspen-
sion for procedure.
(5) Remove half shafts.
(6) Remove skid plate.
(7) Remove differential drain plug (Fig. 3) and
drain fluid.
(8) Remove differential vent hose (Fig. 4) from
cover.
(9) Remove propeller shaft from pinion flange.
(10) Support axle with a lift/jack.
(11) Remove bolt from left front axle bracket frame
mount (Fig. 5).
(12) Remove bolts from right axle bracket frame
mounts (Fig. 6).
(13) Remove bolt from left rear axle bracket frame
mount (Fig. 7).
(14) Lower axle from vehicle.
(15) Remove brackets from axle if necessary.
INSTALLATION
(1) Install left rear bracket to axle and tighten to
61 N´m (45 ft. lbs.).
(2) Install right bracket to axle and tighten to 88
N´m (65 ft. lbs.).(3) Install left front bracket to axle and tighten to
61 N´m (45 ft. lbs.).
(4) Raise axle up and align brackets with frame
mounts.
(5) Install frame mount bolts and tighten to 88
N´m (65 ft. lbs.).
(6) Install propeller shaft.
(7) Install half shafts.
Fig. 3 DRAIN PLUG
1 - LEFT FRONT AXLE BRACKET
2 - DRAIN PLUG
3 - DIFFERENTIAL HOUSING
Fig. 4 DIFFERENTIAL COVER
1 - COVER
2 - VENT TUBE
Fig. 5 LEFT FRONT AXLE BRACKET
1 - LEFT FRONT AXLE BRACKET
2 - BRACKET BOLT
3 - 24 FRONT AXLE - 186FIAKJ
FRONT AXLE - 186FIA (Continued)

(8) Install lower control arms, refer to 2 Suspen-
sion for procedures.
(9) Install new half shaft hub nuts and tighten to
136 N´m (100 ft. lbs.).
(10) Install axle vent hose.
(11) Fill differential with gear lubricant.
(12) Install skid plate.
(13) Install wheel and tire assemblies.
(14) Remove support and lower vehicle.
(15) Check vehicle alignment.
ADJUSTMENTS
Ring and pinion gears are supplied as matched
sets only. The identifying numbers for the ring and
pinion gear are etched onto each gear (Fig. 8). A plus
(+) number, minus (±) number or zero (0) is etched
into the face of the pinion gear. This number is the
amount (in thousandths of an inch) the depth varies
from the standard depth setting of a pinion etched
with a (0). The standard setting from the center line
of the ring gear to the back face of the pinion is 92.1
mm (3.625 in.). The standard depth provides the best
gear tooth contact pattern. Refer to Backlash and
Contact Pattern Analysis paragraph in this section
for additional information.
Fig. 6 RIGHT AXLE BRACKET
1 - RIGHT AXLE BRACKET
2 - FRONT BRACKET BOLT
3 - REAR BRACKET BOLT
Fig. 7 LEFT REAR AXLE BRACKET
1 - LEFT REAR AXLE BRACKET
2 - BRACKET BOLT
Fig. 8 PINION GEAR ID NUMBERS
1 - PRODUCTION NUMBERS
2 - DRIVE PINION GEAR DEPTH VARIANCE
3 - GEAR MATCHING NUMBER
KJFRONT AXLE - 186FIA 3 - 25
FRONT AXLE - 186FIA (Continued)

INSTALLATION
(1) Position the insulator mount and install the
insulator mount through bolt.
(2) Lower the engine until the cylinder block-to-in-
sulator mount bolts can be installed.
(3) Remove the jack and block of wood.
(4) Torque the cylinder block-to-insulator mount
bolts to 61 N´m ( 45 ft. lbs.).
(5) Install and torque the through bolt retaining
nut to 61 N´m (45 ft. lbs.).
(6) Install the fan blade, fan clutch and fan
shroud.
REAR MOUNT
REMOVAL
NOTE: A resilient rubber cushion supports the
transmission at the rear between the transmission
extension housing and the rear support crossmem-
ber or skid plate.
(1) Disconnect negative cable from battery.
(2) Raise the vehicle and support the transmission.
(3) Remove the nuts holding the support cushion
to the crossmember. Remove the crossmember.
MANUAL TRANSMISSION
²Remove the support cushion nuts and remove
the cushion.
²Remove the transmission support bracket bolts
and remove the bracket from the transmission.
AUTOMATIC TRANSMISSION
²Remove the support cushion bolts and remove
the cushion and the support bracket from the trans-
mission (4WD) or from the adaptor bracket (2WD).
²On 2WD vehicles, remove the bolts holding the
transmission support adaptor bracket to the trans-
mission. Remove the adaptor bracket.
INSTALLATION
MANUAL TRANSMISSION:
(1) Install the transmission support bracket to the
transmission. Install the bolts and tighten to 46 N´m
(34 ft. lbs.) torque.
(2) Install the support cushion to the support
bracket. Install the nuts and tighten to 75 N´m (55
ft. lbs.) torque.
(3) Position the crossmember onto the support
cushion studs. Install the stud nuts and tighten to 22
N´m (192 in. lbs) torque.
(4) Install crossmember-to-sill bolts and tighten to
41 N´m (30 ft. lbs.) torque.
(5) Remove the transmission support.
(6) Lower the vehicle.
(7) Connect negative cable to battery.
AUTOMATIC TRANSMISSION:
(1) On 2WD vehicles, position the transmission
support adaptor bracket to the transmission. Install
the bolts and tighten to 75 N´m (55 ft. lbs.) torque.
(2) Position the transmission support bracket and
support cushion to the adaptor bracket (2WD) or the
transmission (4WD). Install the bolts and tighten to
75 N´m (55 ft. lbs.) torque.
(3) Position the crossmember onto the support
cushion studs. Install the stud nuts and tighten to 22
N´m (192 in. lbs) torque.
(4) Install crossmember-to-sill bolts and tighten to
41 N´m (30 ft. lbs.) torque.
(5) Remove the transmission support.
(6) Lower the vehicle.
(7) Connect negative cable to battery.
LUBRICATION
DESCRIPTION
The lubrication system is a full flow filtration pres-
sure feed type.
Fig. 68 Engine Insulator Mount 3.7 Right
1 - MOUNT
2 - THRU BOLT
3 - BOLT
4 - NUT
KJENGINE - 3.7L 9 - 57
FRONT MOUNT (Continued)

REAR MOUNT
REMOVAL
NOTE: A resilient rubber cushion supports the
transmission at the rear between the transmission
extension housing and the rear support crossmem-
ber or skid plate.
(1) Disconnect negative cable from battery.
(2) Raise the vehicle and support the transmission.
(3) Remove the nuts holding the support cushion
to the crossmember. Remove the crossmember.
MANUAL TRANSMISSION
a. Remove the support cushion nuts and remove
the cushion.
b. Remove the transmission support bracket bolts
and remove the bracket from the transmission.
AUTOMATIC TRANSMISSION
c. Remove the support cushion bolts and remove
the cushion and the support bracket from the trans-
mission (4WD) or from the adaptor bracket (2WD).
d. On 2WD vehicles, remove the bolts holding the
transmission support adaptor bracket to the trans-
mission. Remove the adaptor bracket.
INSTALLATION
MANUAL TRANSMISSION:
(1) Install the support cushion to the transmission
(Fig. 74)or (Fig. 75). Install the bolts and tighten.
(2) Position the crossmember in the vehicle. Install
the crossmember to mount through bolt and nut.
(3) Install crossmember-to-sill bolts and tighten to
41 N´m (30 ft. lbs.) torque.
(4) Remove the transmission support.
(5) Lower the vehicle.
(6) Connect negative cable to battery.
AUTOMATIC TRANSMISSION:
(1) Install the transmission mount to transmission
(Fig. 76) and (Fig. 77). Install the bolts.
(2) Position the crossmember in the vehicle. Install
the crossmember to mount through bolt and nut.
(3) Remove the transmission support.
(4) Lower the vehicle.
(5) Connect negative cable to battery.
Fig. 74 TRANSMISSION MOUNT-2.4L MANUAL
TRANS
1 - TRANSMISSION MOUNT
2 - MOUNTING BOLT
Fig. 75 TRANSMISSION MOUNT 3.7L MANUAL
TRANS 2WD
1 - NUT
2 - BOLT
3 - TRANS MOUNT
KJENGINE9s-45

FRAMES & BUMPERS
TABLE OF CONTENTS
page page
FRONT FASCIA
REMOVAL.............................1
INSTALLATION..........................2
REAR FASCIA
REMOVAL.............................2
INSTALLATION..........................2
REAR FASCIA SUPPORT
REMOVAL.............................3
INSTALLATION..........................3
FRAME
SPECIFICATIONS
SPECIFICATIONS - FRAME DIMENSIONS . . . 3
SPECIFICATIONS - TORQUE.............6
FRONT SKID PLATE
REMOVAL.............................6
INSTALLATION..........................6
ENGINE CRADLE CROSSMEMBER
REMOVAL.............................6
INSTALLATION..........................6TRANSFER CASE SKID PLATE
REMOVAL.............................7
INSTALLATION..........................7
REAR CROSSMEMBER
REMOVAL.............................7
INSTALLATION..........................7
FRONT TOW HOOK
REMOVAL.............................8
INSTALLATION..........................8
REAR TOW HOOK
REMOVAL.............................8
INSTALLATION..........................8
TRAILER HITCH
REMOVAL.............................9
INSTALLATION..........................9
FUEL TANK SKID PLATE
REMOVAL.............................9
INSTALLATION..........................9
FRONT FASCIA
REMOVAL
(1) Remove the grille. (Refer to 23 - BODY/EXTE-
RIOR/GRILLE - REMOVAL)
(2) Raise and support vehicle.
(3) Remove the front wheel opening flare moldings.
(Refer to 23 - BODY/EXTERIOR/FRONT WHEEL
OPENING FLARE MOLDINGS - REMOVAL)
(4) Remove the four screws through the lower air
dam (Fig. 1).
(5) Disconnect the electrical connectors:
²Fascia to grille opening reinforcement. (Fig. 1)
²Side repeater lights, both sides, if equipped.
(Fig. 2)
(6) Remove the six push pins from the grill sup-
port.
(7) Remove the rivets attaching the air dam to the
wheelhouse splash shield.
(8) Release the support tabs beneath the head-
lamps.
(9) Release the inner support clips from within the
fascia between the lights (Fig. 2).
(10) Remove the fascia.
Fig. 1 FRONT FASCIA
1 - ELECTRICAL CONNECTOR
2 - PUSH PINS
3 - FRONT FASCIA ASSEMBLY
4 - LOWER SCREWS
5 - PLASTIC RIVETS (2)
6 - INNER SUPPORT CLIPS
7 - SUPPORT TABS
KJFRAMES & BUMPERS 13 - 1

SPECIFICATIONS - TORQUE
DESCRIPTION N´m Ft. Lbs. In. Lbs.
ENGINE CRADLE CROSSMEMBER INNER RAIL BOLTS 47 35 Ð
ENGINE CRADLE CROSSMEMBER MOUNTING BOLTS 122 90 Ð
ENGINE MOUNT THROUGH BOLTS/NUTS 88 65 Ð
FRONT SKID PLATE BOLTS 61 45 Ð
FRONT TOW HOOK NUTS/BOLT 61 45 Ð
FUEL TANK SKID PLATE 88 65 Ð
REAR CROSSMEMBER BOLTS 47 35 Ð
REAR TOW HOOK BOLTS 88 65 Ð
TRAILER HITCH BOLTS 88 65 Ð
TRANSFER CASE SKID PLATE BOLTS 34 25 Ð
TRANSMISSION MOUNT THROUGH BOLT/NUT 88 65 Ð
FRONT SKID PLATE
REMOVAL
(1) Raise and support the vehicle.
(2) Remove the skid plate bolts and remove the
skid plate. (Fig. 7)
INSTALLATION
(1) Install the skid plate.
(2) Install the bolts and tighten to 61 N´m (45 ft.
lbs.).
ENGINE CRADLE
CROSSMEMBER
REMOVAL
(1) Install a suitable engine support tool.
(2) Raise and support the vehicle.
(3) Remove the lower control arms. (Refer to 2 -
SUSPENSION/FRONT/LOWER CONTROL ARM -
REMOVAL)
(4) Remove the sway bar. (Refer to 2 - SUSPEN-
SION/FRONT/STABILIZER BAR - REMOVAL)
(5) Remove the front axle, if equipped. (Refer to 3 -
DIFFERENTIAL & DRIVELINE/FRONT AXLE -
REMOVAL)
(6) Remove the power steering rack. (Refer to 19 -
STEERING/GEAR - REMOVAL)
(7) Loosen the engine mount through bolts.
(8) Support the engine cradle with a suitable lift-
ing device.
(9) Using a grease pencil or equivalent, mark the
location of the engine support cradle.
(10) Remove the engine cradle bolts and remove
the engine cradle.
INSTALLATION
(1) Raise and support the vehicle.
(2) Using a suitable lifting device raise the engine
cradle into the vehicle while lining up the engine
mount through bolts.
Fig. 7 SKID PLATE
1 - SKID PLATE
2 - BOLTS (4)
13 - 6 FRAMES & BUMPERSKJ
FRAME (Continued)

(3) Align the engine cradle to the marks made dur-
ing removal and install the mounting and inner rail
bolts.
(4) Tighten the mounting bolts to 122 N´m (90 ft.
lbs.).
(5) Tighten the inner rail bolts to 47 N´m (35 ft.
lbs.).
(6) Tighten the engine mount through bolts to 88
N´m (65 ft. lbs.).
(7) Install the power steering rack. (Refer to 19 -
STEERING/GEAR - INSTALLATION)
(8) Install the front axle, if equipped. (Refer to 3 -
DIFFERENTIAL & DRIVELINE/FRONT AXLE -
INSTALLATION)
(9) Install the stabilizer bar. (Refer to 2 - SUS-
PENSION/FRONT/STABILIZER BAR - INSTALLA-
TION)
(10) Install the lower control arms. (Refer to 2 -
SUSPENSION/FRONT/LOWER CONTROL ARM -
INSTALLATION)
(11) Lower the vehicle and remove the engine sup-
port tool.
TRANSFER CASE SKID PLATE
REMOVAL
(1) Remove the bolts and remove the skid plate.
(Fig. 8)
INSTALLATION
(1) Install the skid plate.
(2) Install the bolts and tighten to 34 N´m (25 ft.
lbs.).
REAR CROSSMEMBER
REMOVAL
(1) Raise and support the vehicle.
(2) Support the transmission with a suitable lifting
device.
(3) Remove the transmission mount through bolt.
(4) Remove the crossmember bolts and remove the
crossmember. (Fig. 9)
INSTALLATION
(1) Install the crossmember and install the bolts.
(2) Tighten the bolts to 47 N´m (35 ft. lbs.)
(3) Install transmission mount through bolt and
tighten to 88 N´m (65 ft. lbs.).
Fig. 8 SKID PLATE
1 - SKID PLATE
2 - BOLTS
Fig. 9 CROSS MEMBER
1 - CROSSMEMBER
2 - BOLTS
KJFRAMES & BUMPERS 13 - 7
ENGINE CRADLE CROSSMEMBER (Continued)

TRAILER HITCH
REMOVAL
(1) Remove the tow hooks, if equipped. (Refer to 13
- FRAME & BUMPERS/FRAME/REAR TOW HOOK
- REMOVAL)
(2) Disconnect trailer electrical connector.
(3) Support the hitch with a suitable lifting device.
(4) Remove the bolts and remove the trailer hitch.
(Fig. 12)
INSTALLATION
(1) Support the hitch with a suitable lifting device
and install the hitch.
(2) Install the bolts and tighten to 88 N´m (65 ft.
lbs.)
(3) Connect the electrical connector.
FUEL TANK SKID PLATE
REMOVAL
(1) Raise and support the vehicle.
(2) Support the skid plate with a suitable lifting
device.
(3) Remove the trailer hitch, if equipped. (Refer to
13 - FRAME & BUMPERS/FRAME/TRAILER
HITCH - REMOVAL)
(4) Remove the tow hooks, if not previously
removed. (Refer to 13 - FRAME & BUMPERS/
FRAME/REAR TOW HOOK - REMOVAL)
(5) Remove the bolts and remove the fuel tank
skid plate.
INSTALLATION
(1) Install the skid plate and support with a suit-
able lifting device.(2) Install the trailer hitch, if equipped. (Refer to
13 - FRAME & BUMPERS/FRAME/TRAILER
HITCH - INSTALLATION)
(3) Install the tow hooks, if equipped. (Refer to 13
- FRAME & BUMPERS/FRAME/REAR TOW HOOK
- INSTALLATION)
(4) Install the bolts and tighten to 88 N´m (65 ft.
lbs.).
Fig. 12 TRAILER HITCH
1 - BOLTS
2 - TRAILER LIGHTS ELECTRICAL CONNECTOR
3 - TRAILER HITCH
KJFRAMES & BUMPERS 13 - 9