Page 1147 of 1784

(10) Remove jack from under transmission and
mount transfer case on jack.
(11) Align transfer case and transmission shafts
and install transfer case. Tighten transfer case-to-
transmission nuts/bolts to 35 Nzm (26 ft. lbs.) torque.
(12) Move jack stand from under engine and repo-
sition it under transmission. Then remove transmis-
sion jack.
(13) Connect transfer case vacuum hoses and link-
age. Check and adjust linkage if necessary.
(14) Connect transmission and transfer case vent
hoses and backup light switch wires.
(15) Install clutch sleeve cylinder.
(16) Connect vehicle speed sensor and wires.
(17) On XJ, install rear crossmember and attach
cushion and bracket. Tighten crossmember-to-frame
bolts to 41 Nzm (30 ft. lbs.) torque. Tighten transmis-
sion-to-rear cushion and bracket bolts/nuts to 45 Nzm
(33 ft. lbs.) torque.
(18) On YJ, install rear cushion and bracket and
skid plate. Tighten attaching bolts/nuts to indicated
torque (Fig. 1).
(19) Align and install front/rear propeller shafts.
Tighten shaft U-joint clamp bolts to 19 Nzm (170 in.
lbs.) torque.
(20) On XJ, install skid plate if removed. Tighten
bolts to 42 Nzm (31 ft. lbs.) torque. Tighten stud nuts
to 17 Nzm (150 in. lbs.) torque.
(21) Top off transmission and transfer lubricant
levels.
(22) Remove supports and lower vehicle.
TRANSMISSION DISASSEMBLY AND OVERHAUL
ADAPTER/EXTENSION HOUSING REMOVAL
(1) Remove release bearing, fork, retainer clip and
clutch housing from transmission. Also remove shift
lever if not previously removed.
(2) On 2-wheel drive models, remove extension
housing seal (Fig. 1).(3) Remove shift tower bolts and remove tower
from adapter or extension housing (Fig. 2).
(4) Remove gasket from shift tower (Fig. 3).
(5) Remove shift arm retainer bolt (Fig. 4).
Fig. 1 Removing Extension Housing Seal
Fig. 2 Shift Tower Removal/Installation
Fig. 3 Shift Tower Gasket Removal/Installation
Fig. 4 Shift Arm Retainer Bolt Removal/Installation
21 - 36 AX 15 MANUAL TRANSMISSIONJ
Page 1148 of 1784
(6) Loosen and remove restrictor pins (Fig. 5).
(7) Remove shift arm shaft plug (Fig. 6).
(8) Remove shift arm shaft with large magnet (Fig.
7).(9) Remove shift arm (Fig. 8).
(10) Remove plug for reverse shift head lock ball.
Plug is at right side of adapter housing near backup
light switch (Fig. 9).
Fig. 5 Removing/Installing Restrictor Pins
Fig. 6 Removing/Installing Shift Lever Shaft Plug
Fig. 7 Removing/Installing Shift Lever Shaft
Fig. 8 Shift Arm Removal/Installation
Fig. 9 Removing/Installing Lock Ball Plug
JAX 15 MANUAL TRANSMISSION 21 - 37
Page 1149 of 1784
(11) Remove lock ball spring with pencil magnet
(Fig. 10).
(12) Remove shift head lock ball with pencil mag-
net (Fig. 11).
(13) Remove backup light switch from adapter/ex-
tension housing.
(14) On 2-wheel drive models, remove distance
sensor, speedometer adapter and driven gear if not
removed previously.
(15) Remove adapter/extension housing bolts (Fig.
12).
Fig. 10 Removing/Installing Lock Ball Spring
Fig. 11 Removing/Installing Shift Head Lock Ball
Fig. 12 Adapter Housing Bolt Locations
21 - 38 AX 15 MANUAL TRANSMISSIONJ
Page 1150 of 1784
(16) Loosen adapter/extension housing with rubber
mallet (Fig. 13).
(17) Remove housing after loosening it (Fig. 14)
(18) Remove adapter housing oil seal with pry tool
(Fig. 15).GEAR CASE REMOVAL
(1) Remove bearing retainer bolts and remove re-
tainer (Fig. 16).
(2) Remove retainer oil seal with pry tool (Fig. 17).
(3) Remove input shaft bearing snap ring (Fig. 18).
Fig. 13 Loosening Adapter Housing
Fig. 14 Adapter Housing Removal
Fig. 15 Removing Adapter Housing Seal
Fig. 16 Front Bearing Retainer Removal
Fig. 17 Front Bearing Retainer Seal Location
Fig. 18 Removing Input Shaft Bearing Snap Ring
JAX 15 MANUAL TRANSMISSION 21 - 39
Page 1151 of 1784
(4) Remove cluster gear front bearing snap ring
(Fig. 19).
(5) Loosen gear case by tapping it away from inter-
mediate plate with rubber mallet (Fig. 20).
(6) Remove gear case from geartrain and interme-
diate plate (Fig. 21).(7) On 2-wheel drive models, remove speedometer
gear snap ring and remove speedometer gear and
spacer from output shaft.
FIFTH GEAR AND SYNCHRO ASSEMBLY
REMOVAL
(1) Remove three lock ball plugs from intermediate
plate (Fig. 22).
(2) Remove three lock ball springs and lock balls
from intermediate plate with pencil magnet (Fig. 23).
Fig. 19 Removing Cluster Gear Front Bearing Snap Ring
Fig. 20 Loosening Gear Case
Fig. 21 Gear Case Removal
Fig. 22 Lock Ball Plug Locations
Fig. 23 Removing/Installing Lock Ball And Spring
21 - 40 AX 15 MANUAL TRANSMISSIONJ
Page 1152 of 1784
(3) Mount intermediate plate and geartrain assem-
bly in vise as follows:
(a) Insert two spare bolts in one bottom bolt hole
in intermediate plate. Insert bolts from opposite
sides of plates (Fig. 24).
(b) Install enough flat washers under each bolt
head to prevent bolts from touching (Fig. 24).
(c) Tape bolts and washers in place and mount
intermediate plate in vise (Fig. 24).
(d) Clamp vise jaws securely against bolt heads
(Fig. 24).Do not clamp vise jaws on intermedi-
ate plate. Clamp only on bolt heads.
(4) Remove fifth gear snap ring (Fig. 25). Retain
snap ring for assembly reference. It is a select fit
component.(5) Remove E-ring that secures reverse shift arm
to fork (Fig. 26).
Fig. 24 Mounting Intermediate Plate And Geartrain In Vise
Fig. 25 Fifth Gear Snap Ring Removal
Fig. 26 Removing Reverse Shift Arm E-Ring
JAX 15 MANUAL TRANSMISSION 21 - 41
Page 1153 of 1784
(6) Remove bolts attaching reverse shift arm
bracket to intermediate plate. Then remove bracket
(Fig. 27).
(7) Remove reverse shift arm and shoe (Fig. 28).
(8) Remove fifth gear shift fork set screw (Fig. 29).
(9) Move fifth gear shift rail forward until it clears
shift fork.
(10) Remove fifth gear shift fork from synchro
sleeve (Fig. 30).
(11) Remove reverse shift rail and reverse shift
head as assembly (Fig. 31).
(12) Measure thrust clearance between counter
fifth gear and thrust ring with feeler gauge. Clear-
ance should be 0.10 - 0.40 mm (0.003 - 0.019 in.). If
clearance exceeds limits, gear and/or ring will have
to be replaced.
Fig. 27 Removing Reverse Shift Arm Bracket
Fig. 28 Removing Reverse Shift Arm And Shoe
Fig. 29 Removing Fifth Gear Fork Set Screw
Fig. 30 Removing Fifth Gear Shift Fork
Fig. 31 Removing Reverse Shift Head And Rail
21 - 42 AX 15 MANUAL TRANSMISSIONJ
Page 1154 of 1784
(13) Loosen fifth spline gear with standard two-jaw
puller (Fig. 32). Position puller jawsbehind fifth
counter gearas shown.
(14) Remove fifth spline gear (Fig. 33).
(15) Remove fifth gear synchro ring (Fig. 34).(16) Remove fifth gear synchro and sleeve assem-
bly (Fig. 35).
(17) Remove counter fifth gear thrust ring (Fig. 36).
(18) Remove thrust ring lock ball with pencil mag-
net (Fig. 37).
Fig. 37 Removing Thrust Ring Lock Ball
Fig. 32 Loosening Fifth Spline Gear
Fig. 33 Removing Fifth Spline Gear
Fig. 34 Removing Fifth Gear Synchro Ring
Fig. 35 Removing Counter Fifth Gear And Synchro
Assembly
Fig. 36 Removing Fifth Gear Thrust Ring
JAX 15 MANUAL TRANSMISSION 21 - 43