Page 3153 of 4264

MSG MODEL 7B-35
Important Operations
1. Intermediate Plate
2. Reverse Idler Shaft
1) Install the reverse idler shaft to the intermediate plate.
2) Tighten the reverse idler shaft bolt to the specified torque.
Idler Shaft Bolt Torque Nm(kgfm/lbft)
18.6 (1.9 / 13.7)
3) Set the mainshaft with gear assembly
1 and the counter
gear assembly
2 to the holding fixture
3.
Holding Fixture : 5-8840-2001-0 (J-29768)
4) Place the holding fixture (with the mainshaft and the
counter shaft) in a vise.
5) Mesh the 3rd-4th synchronizer to the 3rd gear.
Mesh the 1st-2nd synchronizer to the 1st gear.
6) Install the intermediate plate to the mainshaft and the
counter gear ball bearings.
6. Reverse Idler Gear
8. Counter Reverse Gear Lock Nut
1) Apply the engine oil to the idler shaft and the reverse gear
inside circumference.
2) Install the reverse gear to the idler shaft.
3) Install a new counter reverse gear lock nut.
Never reinstall the old lock nut.
4) Tighten the reverse gear lock nut to the specified torque.
Lock Nut Torque Nm (kgfm/lbft)
107.8 (11 / 79.6)
9. Thrust Washer
1) Apply the engine oil to both sides of the thrust washer.
2) Install the thrust washer to the mainshaft.
The thrust washer oil groove must be facing the reverse
gear side.
Page 3154 of 4264

7B-36 MSG MODEL
13. Rev.-5th Synchronizer Assembly
1) Apply the engine oil to the clutch hub spline.
2) Install the synchronizer assembly to the mainshaft.
The sleeve heavy chamfer
1 and the insert short side
2
must be facing to the rear side of the transmission.
14. Mainshaft Lock Nut and Washer
1) Install a new lock nut and washer to the mainshaft.
Never reinstall the used lock nut and washer.
2) Use the lock nut wrench to tighten the lock nut to the
specified torque.
Lock Nut Wrench : 5-8840-0353-0 (J-36629)
Lock Nut Torque Nm(kgfm/lbft)
107.8 (11 / 79.6)
22. Counter Reverse Gear Nut and Washer
Tighten the counter gear lock nut to the specified torque.
Reverse Gear Nut Torque N
m(kgf
m/lb
ft)
107.8 (11 / 79.6)
18. Thrust Washer and Lock Ball
23. Thrust Washer Thrust Ring
24. Thrust Ring Snap ring
1) Install the thrust washer with lock ball together with the
thrust ring to the mainshaft.
2) Use a pair of snap ring pliers to install the snap ring.
3) Use a thickness gauge to measure the clearance between
the 5th gear and the thrust washer.
5th Gear and Thrust Washer Clearance mm(in)
Standard
0.1 - 0.3 (0.004 - 0.012)
If required, replace the existing thrust washer with a new
thrust washer to bring the clearance to specification.
Page 3155 of 4264
MSG MODEL 7B-37
There are six thrust washer sizes available.
Thrust Washer Availability mm(in)
7.8 (0.307) 7.9 (0.311) 8.0 (0.315)
8.1 (0.319) 8.2 (0.323) 8.3 (0.327)
4) Position the thrust ring snap ring gap
1 and the thrust ring
gap
2 so that they are separated at a 90
angle.
Page 3156 of 4264
7B-38 MSG MODEL
DETENT AND SHIFT ARM ASSEMBLY
Reassembly Steps
1. Intermediate plate and gear assembly
2. 1st-2nd shift arm
3. 3rd-4th shift arm
4. Interlock pin
5. 3rd-4th shift rod
6. 1st-2nd shift rod
7. Rev.-5th shift arm
8. Rev.-5th shift rod
9. Detent ball
10. Detent spring
11. Detent spring plate and gasket
Page 3157 of 4264
MSG MODEL 7B-39
Important Operations
2. 1st-2nd Shift Arm
3. 3rd-4th Shift Arm
7. Rev.-5th Shift Arm
1) Hold a round bar against the shift rod end lower face to
protect it against damage.
2) Use a spring pin installer to install the spring pin to the shift
arm and the shift rod.
Never reinstall the used spring pins.
11. Detent spring Plate and Gasket.
1) Install the new detent plete and new gasket onto the
transmission case into the correct direction.
2) Tighten the detent spring plate bolts to the specified torque.
Detent Spring Plate Bolt Torque N
m(kgf
m/lb
ft)
18.6 (1.9 / 13.7)
Page 3158 of 4264
7B-40 MSG MODEL
MAJOR COMPONENTS
RTW47BLF000401
Reassembly steps
1. Intermediate plate with gear assembly
2. Rear cover with oil seal
3. Transmission case
4. Bearing snap ring
5. Counter gear snap ring
6. Front cover with oil seal
7. Speedometer driven gear
8. Gear control box assembly
9. Speedpmeter sensor
10. Clutch shift fork
11. Clutch shift block and release bearing
Page 3159 of 4264

MSG MODEL 7B-41
RTW47BSH000201
Important Operations
2. Rear Cover with Oil Seal
1)
Align the pins at the lower side of the rear cover with the
holes in the lower side of the intermediate plate.
2)
Apply recommended liquid gasket or its equivalent to the
rear cover fitting surfaces.
3) Install the rear cover to the intermediate plate.
4) Tighten the rear cover bolts to the specified torque.
Rear Cover Bolt Torque N
m(kgf
m/lb
ft)
37.2 (3.8 / 27.5)
Note:
Take care not to twist or puncture the oil seal during the
installation procedure.
RTW47BSH000301
3. Transmission Case
4. Bearing Snap Ring
1) Apply the engine oil to the transmission case top gear shaft
ball bearing fitting faces.
2)
Apply recommended liquid gasket or its equivalent to the
transmission case fitting surfaces.
3) Install the transmission case to the intermediate plate.
4) Pull the top gear shaft from the transmission case until the
ball bearing snap ring grove protrudes from the
transmission case front cover fitting faces.
5) Use a pair of snap ring pliers to install the snap ring to the
ball bearing.
6. Front Cover with Oil Seal
1) Clean and apply recommended liquid gasket or its
equivalent to the through bolt threads.
2) Install the new gasket and tighten the new cover bolt to the
specified torgue.
Front Cover Bolt Torgue N
m(kgf
m/lb.ft)
24.5 (2.5 / 18.1)
RTW47BSH000101
10. Shift Fork
Apply molybdenum disulfide type grease to the areas as
shown in the figure and install shift fork (Diesel engine).
Page 3160 of 4264
7B-42 MSG MODEL
SPECIAL SERVICE TOOL
ITEM NO. ILLUSTRATION PART NO. PART NAME
MTL-42
9-8529-2201-0
Spring pin remover
MTL-1
5-8840-0013-0
(J-22888)
Gear remover
MTL-9
5-8840-2001-0
(J-29768)
Holding fixture
MTL-35
5-8840-0353-0
(J-36629)
Mainshaft nut wrench
MTL-3
5-8840-0015-0
(J-22912-01)
Bearing remover/installer
MTL-13
5-8840-0026-0
(J-26540)
Front cover oil seal
installer
MTL-14
5-8522-0050-0
(J-29769)
Rear cover oil seal
installer
MTL-21
5-8840-0178-0
(J-33851)
Mainshaft collar installer