Page 253 of 4264
FRONT WHEEL DRIVE 4C1-33
MAJOR COMPONENTS
Reassembly Steps
1. Diff. carrier
2. Outer bearing outer race
3. Inner bearing outer race
4. Adjust shim
5. Inner bearing
6. Collapsible spacer
7. Pinion gear
8. Outer bearing
9. Oil seal
10. Dust cover
11. Flange
12. Flange nut and washer
13. Adjust shim
14. Side bearing
15. Bearing outer race
16. Diff. cage assembly
17. Bearing cap
18. Bolt
19. Axle case
20. Differential assembly
21. Bolt
Page 257 of 4264

FRONT WHEEL DRIVE 4C1-37
(7) Select the shim using the chart;
mm(i n)
Pi ni on
marki ng
+10 +8 +6 +4 +2 0 -2 -4 -6 -8 -10 Dial indicator
reading (inches)
0.081 2.18 (0.0858)0.082 2.18 (0.0858) 2.20 (0.0866)0.083 2.18 (0.0858) 2.20 (0.0866) 2.24 (0.0882)0.084 2.18 (0.0858) 2.20 (0.0866) 2.24 (0.0882) 2.26 (0.0890)0.085 2.18 (0.0858) 2.20 (0.0866) 2.24 (0.0882) 2.26 (0.0890) 2.28 (0.0898)0.086 2.18 (0.0858) 2.20 (0.0866) 2.24 (0.0882) 2.26 (0.0890) 2.28 (0.0898) 2.32 (0.0914)0.087 2.18 (0.0858) 2.20 (0.0866) 2.24 (0.0882) 2.26 (0.0890) 2.28 (0.0898) 2.32 (0.0914) 2.34 (0.0921)0.088 2.18 (0.0858) 2.20 (0.0866) 2.24 (0.0882) 2.26 (0.0890) 2.28 (0.0898) 2.32 (0.0914) 2.34 (0.0921) 2.36 (0.0929)0.089 2.18 (0.0858) 2.20 (0.0866) 2.24 (0.0882) 2.26 (0.0890) 2.28 (0.0898) 2.32 (0.0914) 2.34 (0.0921) 2.36 (0.0929) 2.38 (0.0937)0.090 2.18 (0.0858) 2.20 (0.0866) 2.24 (0.0882) 2.26 (0.0890) 2.28 (0.0898) 2.32 (0.0914) 2.34 (0.0921) 2.36 (0.0929) 2.38 (0.0937)2.42 (0.0953)0.091 2.18 (0.0858) 2.20 (0.0866) 2.24 (0.0882) 2.26 (0.0890) 2.28 (0.0898) 2.32 (0.0914) 2.34 (0.0921) 2.36 (0.0929) 2.38 (0.0937) 2.42 (0.0953) 2.44 (0.0961)0.092 2.20 (0.0866) 2.24 (0.0882) 2.26 (0.0890) 2.28 (0.0898) 2.32 (0.0914) 2.34 (0.0921) 2.36 (0.0929) 2.38 (0.0937) 2.42 (0.0953) 2.44 (0.0961) 2.46 (0.0969)0.093 2.24 (0.0882) 2.26 (0.0890) 2.28 (0.0898) 2.32 (0.0914) 2.34 (0.0921) 2.36 (0.0929) 2.38 (0.0937) 2.42 (0.0953) 2.44 (0.0961) 2.46 (0.0969) 2.48 (0.0977)0.094 2.26 (0.0890) 2.28 (0.0898) 2.32 (0.0914) 2.34 (0.0921) 2.36 (0.0929) 2.38 (0.0937) 2.42 (0.0953) 2.44 (0.0961) 2.46 (0.0969) 2.48 (0.0977) 2.52 (0.0992)0.095 2.28 (0.0898) 2.32 (0.0914) 2.34 (0.0921) 2.36 (0.0929) 2.38 (0.0937) 2.42 (0.0953) 2.44 (0.0961) 2.46 (0.0969) 2.48 (0.0977) 2.52 (0.0992) 2.54 (0.1000)0.096 2.32 (0.0914) 2.34 (0.0921) 2.36 (0.0929) 2.38 (0.0937) 2.42 (0.0953) 2.44 (0.0961) 2.46 (0.0969) 2.48 (0.0977) 2.52 (0.0992) 2.54 (0.1000) 2.56 (0.1008)0.097 2.34 (0.0921) 2.36 (0.0929) 2.38 (0.0937) 2.42 (0.0953) 2.44 (0.0961) 2.46 (0.0969) 2.48 (0.0977) 2.52 (0.0992) 2.54 (0.1000) 2.56 (0.1008) 0.098 2.36 (0.0929) 2.38 (0.0937) 2.42 (0.0953) 2.44 (0.0961) 2.46 (0.0969) 2.48 (0.0977) 2.52 (0.0992) 2.54 (0.1000) 2.56 (0.1008) 0.099 2.38 (0.0937) 2.42 (0.0953) 2.44 (0.0961) 2.46 (0.0969) 2.48 (0.0977) 2.52 (0.0992) 2.54 (0.1000) 2.56 (0.1008) 0 2.42 (0.0953) 2.44 (0.0961) 2.46 (0.0969) 2.48 (0.0977) 2.52 (0.0992) 2.54 (0.1000) 2.56 (0.1008) 0.001 2.44 (0.0961) 2.46 (0.0969) 2.48 (0.0977) 2.52 (0.0992) 2.54 (0.1000) 2.56 (0.1008) 0.002 2.46 (0.0969) 2.48 (0.0977) 2.52 (0.0992) 2.54 (0.1000) 2.56 (0.1008) 0.003 2.48 (0.0977) 2.52 (0.0992) 2.54 (0.1000) 2.56 (0.1008) 0.004 2.52 (0.0992) 2.54 (0.1000) 2.56 (0.1008) 0.005 2.54 (0.1000) 2.56 (0.1008) 0.006 2.56 (0.1008)
Note :
When ordering shims, find the part number in the Parts Catalog by using the thickness of the shims listed
in the above table.
5. Inner Bearing
Place the shim on the drive pinion, with the chamfered side
turned towards the pinion head then install the inner bearing on
to the pinion using an installer and a press.
Installer : 9-8522-1165-0 (J-6133-01)
Note:
Do not apply pressure to the roller cage.
Apply pressure only to the inner race.
6. Collapsible Spacer
Discard the used collapsible spacer and install a new one.
9. Oil Seal
Use oil seal installer to install a new oil seal that has been
soaked in rear axle lubricant.
Installer : 9-8522-1275-0 (J-24250)
Note :
Take care not to use a rear differential oil seal instead of
the front differential oil seal.
Page 258 of 4264

4C1-38 FRONT WHEEL DRIVE
12. Flange Nut and Washer
(1) Apply lubricant to the pinion threads.
(2) Tighten the nut to the specified torque using the pinion
flange holder.
Pinion flange holder : 5-8840-0133-0
(J-8614-01)
Torque N
m (kgf
m/lb
ft
)
176.6 - 274.7 (18 - 28/130 - 202)
Discard used flange nut and install new one.
(3) Pinion bearing preload
(a) Measure the bearing preload by using a torque meter. Note
the scale reading required to rotate the flange.
(b) continue tightening until the specified starting torque is
obtained.
Starting Torque N
m (kgf
cm/lb
in
)
0.63 - 1.13 (6.5 - 11.5/5.7 - 9.9)
13. Adjust Shim
(1)
Attach the side bearing to the differential assembly without
shims. Support the opposite side using a pilot to prevent
bearing damage.
1 Installer : 9-8522-1164-0
(J-24244)
2 Drive handle : 5-8840-0007-0
(J-8092)
3 Pilot : 9-8521-1743-0
(J-8107-2)
(2) Insert the differential cage assembly with bearing oute
r
races into the side bearing bores of the carrier.
Page 261 of 4264
FRONT WHEEL DRIVE 4C1-41
20. Differential Assembly
(1) Clean the faces of the front axle case and differential
carrier.
Apply the recommended liquid gasket or its equivalent to
the sealing side of the axle case and the carrier.
(2) Attach the differential case and the carrier assembly to the
front axle case and tighten the nuts and bolts. The axle
case bolt is used for drainage.
Torque N
m (kgf
m/lb
ft)
26
5 (2.6
0.5/18.8
3.6)
(3) Install the axle shaft assemblies as instructed earlier in this
section under “Axle Shaft Replacement”.
(4) Fill the axle case with hypoid gear lubricant, to just belo
w
the filler hole.
Lubricant capacity liter (US/UK gal)
1.4 (0.37/0.31)
Page 291 of 4264
FRONT WHEEL DRIVE 4C1-71
4. NOISES IN FRONT AXLE
Checkpoint Trouble Cause Countermeasure
Replenish the gear oilInsufficient gear oil NG
Replace the wheel bearing
Replace the pinion shaft
bearing
Replace the ring gear pinion
gear or side gear
Replace the gear oil
Wheel bearingWorn
Pinion shaft bearingWorn
Worn or chipped
Wrong or poor grade gear oil
Ring gear, pinion gear or side
gear
Adjust the backlashDrive pinion to ring gear
backlashToo much or too little backlash
NG NG NG NG NG
OK OK
OK
OK
Oil level
Tighten or replaceDifferential bearingLoose or worn NG OK
Page 307 of 4264
SHIFT ON THE FLY SYSTEM 4C2-9
RTW440SH000601
RTW440SH000801
Dimension Check
Measure illustration sized A, B, and C
Limit mm (in)
A 64.3 (2.53)
B 6.7 (0.26)
C 6.7 (0.26)
RTW440SH000701
REASSEMBLY
15. Oil seal
Install the new oil seal which has been immersed in
differential gear oil, by using an oil seal installer.
Installer 5-8840-2407-0 (J-41693)
Grip 5-8840-0007-0 (J-8092)
412RS051
14. Needle Bearing
Force a new needle bearing into inner shaft by using a
special tool.
Installer : 5-8840-2408-0 (J-41694)
Grip : 5-8840-0007-0 (J-8092)
Page 308 of 4264
4C2-10 SHIFT ON THE FLY SYSTEM
412RS044
13. Inner Shaft Bearing
Place a new snap ring in inner shaft.
Force a new inner shaft bearing into the inner shaft.
Installer : 5-8840-2197-0 (J-37452)
12. Snap Ring
NOTE;
Be careful not to damage the inner shaft.
11.inner Shaft
Clean the housing contact surface of the front axle
case.
Insert inner shaft assembly into the front axle case.
NOTE:
Be careful not to damage oil seal.
412RW017
10. Snap Ring
Install snap ring in the groove of front axle case.
NOTE:
Be sure to install the snap ring properly.
9. Clutch Gear
Apply differential gear oil to clutch oil.
8. Sleeve
Apply differential gear oil to sleeve.
412RW023
7. Housing
Clean contact surface with the front axle and sctuator
mounting surface.
Apply liquid gasket to the contact surface on the front
axle case and install in the housing.
6. Bolt
Tighten bolts to specified tightening torque.
Housing Bolt Torque N m (kg m/lb ft)
75 (7.6/55)
Page 309 of 4264
SHIFT ON THE FLY SYSTEM 4C2-11
5. Actuator
Clean the actuator contact surface with the housing.
Apply liquid gasket to the contact surface on the
actuator side.
Align shift arm with the groove of sleeve and install the
actuator.
4. Bolt
Tighten bolts to specified torque.
Actuator Bolt Torque N m (kg m/lb ft)
9 (0.95/78)
3. Front Axle Drive Shaft (LH side)
2. Bolt
Install front axle drive shaft and mounting bracket.
Tighten fitting bolts to specified tightening torque.
Bolt Torque N m (kg m/lb ft)
116 (11.8/85)
1. Filler Plug
Pour specified amount of differential gear oil.
Front Differential Oil Capacity liter (US/UK gal)
1.4 (0.37/0.31)
Actuator Housing Oil Capacity liter (US/UK gal)
0.12 (0.03/0.03)
Install filler plug through packing and tighten to
specified torque.
Filler Plug Torque Nm (kgm/lbft)
78 (8.0/58)