Page 3225 of 4264
MANUAL TRANSMISSION 7B1-61
Special Tools (4
2)
ILLUSTRATION TOOL NO.
TOOL NAME ILLUSTRATION TOOL NO.
TOOL NAME
5-8840-2155-0
Bearing remover 5-8840-2159-0
Mainshaft end bearing
installer
5-8840-2027-0
Puller 5-8840-0015-0
Bearing
remover/installer
5-8840-2160-0
Holding fixture 5-8840-2797-0
Rear case oil seal
installer
5-8840-0003-0
Holding fixture base 5-8840-0026-0
Front cover oil seal
installer
5-8840-2156-0
Wrench 9-8522-1165-0
Mainshaft collar remover
5-8840-0047-0
Tork bit wrench
(T–45) 5-8840-0007-0
Driver handle
Page 3226 of 4264

7B1-62 MANUAL TRANSMISSION
Service Precaution
WARNING: THIS VEHICLE HAS A SUPPLEMENTAL
RESTRAINT SYSTEM (SRS). REFER TO THE SRS
COMPONENT AND WIRING LOCATION VIEW IN
ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN YOU
ARE PERFORMING SERVICE ON OR NEAR THE
SRS COMPONENTS OR THE SRS WIRING, REFER
TO THE SRS SERVICE INFORMATION. FAILURE TO
FOLLOW WARNINGS COULD RESULT IN POSSIBLE
AIR BAG DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS. CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, or
other corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener.
When you install fasteners, use the correct
tightening sequence and specifications. Following
these instructions can help you avoid damage to
parts and systems.
Page 3227 of 4264
MANUAL TRANSMISSION 7B1-63
General Description
MUA Transmission (4
4)
A07R300003
The MUA is a constant mesh transmission,
synchronized in all speeds. The transmission is
designed for a great reduction of the shift effort and the
quietest possible operation.
Principle parts of the transmission are the integral clutch
housing, the intermediate plate, the rear case, and the
gears.
The transmission control box is built into the
transmission.
Page 3228 of 4264
7B1-64 MANUAL TRANSMISSION
Transmission (4
4)
Disassembled View
RTW47BLF001001
Legend
(1) Gear Control Lever Knob (10) Transmission-Transfer Fixing Bolt
(2) Rear Floor Console (bucket) (11) Transfer Assembly
(3) Front Floor Console (12) Fuel Pipe Bracket
(4) Grommet Assembly (13) Slave Cylinder
(5) Gear Control Lever (14) Rear Mount Nut
(6) Rear Propeller Shaft (15) Transmission Crossmember
(7) Front Propeller Shaft (16) Starter (Diesel engine only)
(8) Exhaust Pipe Nut (Diesel engine) (17) Transmission Retaining Nut and Bolt
(9) Exhaust Pipe Assembly (6VE1) (18) Transmission Assembly
Page 3229 of 4264
MANUAL TRANSMISSION 7B1-65
Removal
1. Disconnect battery ground cable.
2. Remove gear control lever knob (1).
3. Remove rear floor console (2). (Bucket seat)
Refer to the section “Floor Console”.
4. Remove front floor console (3).
Refer to the section “Floor Console”.
745R300006
Legend
(1) Knob
(2) Rear Floor Console
(3) Front Floor Console
5. Remove grommet assembly (4).
RTW47BMH000101
Page 3230 of 4264
7B1-66 MANUAL TRANSMISSION
6. Remove gear control lever (5).
7. Raise and support vehicle with suitable stands.
8. Remove rear propeller shaft (6).
NOTE: Apply alignment marks on the flange at the
differential side.
9. Remove front propeller shaft (7).
NOTE: Apply alignment marks on the flange at both
front and rear sides.
401RS023
10. Loosen the front exhaust pipe fixing nuts (8) at the
engine side but not remove them. (Diesel engine
only)
150R300004
11. Remove the exhaust pipe (9). (6VE1 only)
RTW37ASH000101
12. Disconnect harness connectors and clips on the
transfer.
Actuator connector
Car Speed Sensor
810R300069
Legend
(1) Neutral Switch Connector: Transmission
(2) Back up Switch Connector
(3) Speed Sensor Connector
(4) Actuator Connector
(5) 2W - 4W Switch Connector
(6) Neutral Switch Connector: Transfer
Page 3231 of 4264
MANUAL TRANSMISSION 7B1-67
13. Remove transmission-transfer fixing bolts (10), and
remove the transfer assembly (11) from the
transmission.
14. Disconnect harness connectors and clips on the
transmission.
Neutral switch; Transmission
Back up Switch
2W-4W Switch
Neutral Switch; Transfer
15. Remove the fuel pipe brackets (12) with pipes from
the transmission (18).
Diesel engine
220R300012
Legend
(1) Bolt
(2) Nut
(3) Fuel Pipe Assembly
6VE1, C24NE
Scan-2
16. Remove slave cylinder (13) and put aside it.
220LV019
17. Support transmission with a transmission jack.
220RS0001
18. Remove engine rear mount nuts (14) from
transmission crossmember (15).
Page 3232 of 4264
7B1-68 MANUAL TRANSMISSION
19. Remove engine rear mount bolts fixing
transmission.
220R300009
20. Remove the middle part of transmission
crossmember (15) by removing four fixing bolts and
nuts.
501R30007
21. Take out the rear support rubber. 22. Remove starter (16). (Diesel engine only)
060L100070
23. Use the clutch release bearing remover 5-8840-
2291-0 (J-39207) to disconnect the clutch release
bearing from the clutch pressure plate. (6VE1 only)
220RW109
Release bearing disconnection
1. Pull the shift fork toward the transmission to
press the clutch release bearing against the
clutch.
2. Insert the clutch release bearing remover
between the wedge collar and the release
bearing.
3. Turn the remover to separate the release
bearing.