Page 185 of 4264
REAR AXLE 4B-21
8.
Removed flange assembly.
9.
Remove the drive pinion assembly using a soft
metal rod and a hammer.
425RY005
10.
Remove collapsible spacer.
11.
Remove the inner bearing by using separator 5-
8840-2197-0
415L100002
12.
Remove adjust shim.
13.
Remove oil seal.
14.
Remove outer bearing.
15.
Remove the inner bearing outer race (1) and the
outer bearing outer race (2) by using a brass bar
and a hammer.
425RS014
425RS015
Page 186 of 4264
4B-22 REAR AXLE
Reassembly
1.
Install outer bearing outer race by using installer 5-
8840-2164-0 and grip 5-8840-0007-0.
425L100002
2.
Install inner bearing outer race by using installer 5-
8840-2163-0 and grip 5-8840-0007-0.
425L100003
3.
Adjust the drive pinion mounting distance as
follows:
a.
Apply gear oil to the inner and outer drive
pinion bearing. Clean the pinion setting
gauge set. Then install the gauge set
together with the inner and outer bearings.
Install gauge plate 5-8840-2166-0 (3), inner
pilot 5-8840-0129-0 (2), stud and nut 5-8840-
0127-0 (4) and outer pilot 5-8840-2085-0 (1)
through inner and outer bearings.
b.
Tighten the nut to the specified torque.
Torque: 2.3 N
m (0.23 kg
m/20 lb in)
425RW030
Page 187 of 4264

REAR AXLE 4B-23
c.
Clean the side bearing bores. Place discs and
dial indicator on to arbor, and place tool into
position in side bearing bores. Install and
tighten the bearing caps to the specified
torque.
Torque :
108 N
m (11 kg
m/80 lb in)
425RW031
Legend
1.
Dial Indicator : 5-8840-0126-0
2.
Gauge Plate : 5-8840-2166-0
3.
Disc (2 pcs.) : 5-8840-2167-0
4.
Arbor : 5-8840-0128-0
Note :
The scale on the dial indicator (5-8840-0126-0) is
inch unit.
d.
Set the dial indicator 5-8840-0126-0 to “0".
Place it on the mounting post of the gauging
arbor with the contact button touching the
indicator pad. Force the dial indicator
downward until the needle has made a half
turn clockwise. Tighten down the dial
indicator in this position.
425RS020
Legend
1.
Dial Indicator
2.
Gauging Arbor
3.
Plunger
4.
Gauge Plate
e.
Position the plunger on the gauge plate. Move
the gauging arbor slowly back and forth and
locate the position at which the dial indicator
shows the greatest deflection. At this point,
once again set the dial indicator to “0".
Repeat the procedure to verify the “0"
setting.
425RS021
f.
After the ZERO setting is obtained, rotate the
gauging arbor until the dial indicator rod does
not touch the gauging plate. Record the
number the dial indicator needle points to.
Page 188 of 4264
4B-24 REAR AXLE
425RS022
Legend
1.
Example=Dial indicator reading od 0.085
g.
Record the pinion depth code on the head of
the drive pinion. The number indicates a
necessary change in the pinion mounting
distance. A plus number indicates the need
for a greater mounting distance (which can be
achieved by decreasing the shim thickness).
A minus number indicates the need for a
smaller mounting distance (which can be
achieved by increasing the shim thickness).
If examination reveals pinion depth code “0",
the pinion is “nominal".
425RS023
Page 189 of 4264

REAR AXLE 4B-25
h.
Select the shim using table below.
mm ( in) Pi ni on
marki ng
+10 +8 +6 +4 +2 0 -2 -4 -6 -8 -10 Dial indicator
reading (inches)
0.073 1.94 (0.0764) 1.96 (0.0772)0.074 1.94 (0.0764) 1.96 (0.0772) 1.98 (0.0779)0.075 1.94 (0.0764) 1.96 (0.0772) 1.98 (0.0779) 2.00 (0.0787)0.076 1.94 (0.0764) 1.96 (0.0772) 1.98 (0.0779) 2.00 (0.0787) 2.02 (0.0795) 2.04 (0.0803)0.077 1.96 (0.0772) 1.98 (0.0779) 2.00 (0.0787) 2.02 (0.0787) 2.04 (0.0803) 2.06 (0.0811)0.078 1.94 (0.0764) 1.96 (0.0772) 1.98 (0.0779) 2.00 (0.0787) 2.02 (0.0787) 2.04 (0.0803) 2.06 (0.0811) 2.08 (0.0819)0.079 1.94 (0.0764) 1.96 (0.0772) 1.98 (0.0779) 2.00 (0.0787) 2.02 (0.0787) 2.04 (0.0803) 2.06 (0.0811) 2.08 (0.0819) 2.10 (0.0827)0.080 1.94 (0.0764) 1.96 (0.0772) 1.98 (0.0779) 2.00 (0.0787) 2.02 (0.0787) 2.04 (0.0803) 2.06 (0.0811) 2.08 (0.0819) 2.10 (0.0827) 2.12 (0.0835) 2.14 (0.0842)0.081 1.96 (0.0772) 1.98 (0.0779) 2.00 (0.0787) 2.02 (0.0787) 2.04 (0.0803) 2.06 (0.0811) 2.08 (0.0819) 2.10 (0.0827) 2.12 (0.0835) 2.14 (0.0842) 2.16 (0.0850)0.082 1.98 (0.0779) 2.00 (0.0787) 2.02 (0.0787) 2.04 (0.0803) 2.06 (0.0811) 2.08 (0.0819) 2.10 (0.0827) 2.12 (0.0835) 2.14 (0.0842) 2.16 (0.0850) 2.18 (0.0858)0.083 2.00 (0.0787) 2.02 (0.0787) 2.04 (0.0803) 2.06 (0.0811) 2.08 (0.0819) 2.10 (0.0827) 2.12 (0.0835) 2.14 (0.0842) 2.16 (0.0850) 2.18 (0.0858) 2.20 (0.0866)0.084 2.04 (0.0803) 2.06 (0.0811) 2.08 (0.0819) 2.10 (0.0827) 2.12 (0.0835) 2.14 (0.0842) 2.16 (0.0850) 2.18 (0.0858) 2.20 (0.0866) 2.22 (0.0874) 2.24 (0.0882)0.085 2.06 (0.0811) 2.08 (0.0819) 2.10 (0.0827) 2.12 (0.0835) 2.14 (0.0842) 2.16 (0.0850) 2.18 (0.0858) 2.20 (0.0866) 2.22 (0.0874) 2.24 (0.0882) 2.26 (0.0890)0.086 2.08 (0.0819) 2.10 (0.0827) 2.12 (0.0835) 2.14 (0.0842) 2.16 (0.0850) 2.18 (0.0858) 2.20 (0.0866) 2.22 (0.0874) 2.24 (0.0882) 2.26 (0.0890) 2.28 (0.0898)0.087 2.12 (0.0835) 2.14 (0.0842) 2.16 (0.0850) 2.18 (0.0858) 2.20 (0.0866) 2.22 (0.0874) 2.24 (0.0882) 2.26 (0.0890) 2.28 (0.0898) 2.30 (0.0906) 2.32 (0.0913)0.088 2.14 (0.0842) 2.16 (0.0850) 2.18 (0.0858) 2.20 (0.0866) 2.22 (0.0874) 2.24 (0.0882) 2.26 (0.0890) 2.28 (0.0898) 2.30 (0.0906) 2.32 (0.0913) 2.34 (0.0921)0.089 2.16 (0.0850) 2.18 (0.0858) 2.20 (0.0866) 2.22 (0.0874) 2.24 (0.0882) 2.26 (0.0890) 2.28 (0.0898) 2.30 (0.0906) 2.32 (0.0913) 2.34 (0.0921) 2.36 (0.0929)0.090 2.18 (0.0858) 2.20 (0.0866) 2.22 (0.0874) 2.24 (0.0882) 2.26 (0.0890) 2.28 (0.0898) 2.30 (0.0906) 2.32 (0.0913) 2.34 (0.0921) 2.36 (0.0929) 0.091 2.22 (0.0874) 2.24 (0.0882) 2.26 (0.0890) 2.28 (0.0898) 2.30 (0.0906) 2.32 (0.0913) 2.34 (0.0921) 2.36 (0.0929) 0.092 2.24 (0.0882) 2.26 (0.0890) 2.28 (0.0898) 2.30 (0.0906) 2.32 (0.0913) 2.34 (0.0921) 2.36 (0.0929) 0.093 2.26 (0.0890) 2.28 (0.0898) 2.30 (0.0906) 2.32 (0.0913) 2.34 (0.0921) 2.36 (0.0929) 0.094 2.28 (0.0898) 2.30 (0.0906) 2.32 (0.0913) 2.34 (0.0921) 2.36 (0.0929) 0.095 2.32 (0.0913) 2.34 (0.0921) 2.36 (0.0929) 0.096 2.34 (0.0921) 2.36 (0.0929) 0.097 2.36 (0.0929)
Note :
When ordering shims, find the part number in the
Parts Catalog by using the thickness of the shims
listed in the above table.
Page 190 of 4264

4B-26 REAR AXLE
4. Place the shim on the drive pinion, then install the
inner bearing onto the pinion by using installer 9-
8522-1165-0 and a press.
Note:
Do not apply pressure to the roller cage. Apply
NOTE: pressure only to the inner race.
425L100008
5. Install collapsible spacer. Discard the used
collapsible spacer and install a new one.
6. Install drive pinion shaft assembly.
7. Install outer bearing and oil seal.
8. Use oil seal installer 5-8840-2165-0 to install a
new oil seal that has grease on seal lip.
415RW029
9. Install flange assembly.
10. Install flange nut.
a. Apply lubricant to the pinion threads.
b. Using the pinion flange holder 5-8840-0133-0,
tighten the nut only enough to remove the shaft
end play.
Note :
Discard used flange nut and install new one.
415RW040
c. Adjust pinion bearing preload.
Measure the bearing preload by using a torque
meter and note the scale reading required to
rotate the flange.
Continue tightening flange nut until the specified
starting torque is obtained.
Starting torque :
0.7-1.3 N
m (0.07-0.13 kg
m/6-11 lb
ft)
Page 191 of 4264
REAR AXLE 4B-27
Note :
Do not overtighten or loosen and then
retighten the nut.
Pinion nut torque will be in the range of 245-
294 N
m (25-30 kg
m/181-217 lb
ft).
425RW018
d. Using punch 5-8840-2293-0, stake the flange
nut at two points.
Note :
When staking, be sure to turn the nut to ensure
that there is no change in bearing preload. Make
sure NOTE: of preload again as instructed in c.
RTW34BSH000201
11. Adjust ring gear backlash.
a.
Attach the side bearing to the differential
assembly without shims by using installer 5-
8840-2162-0 and grip 5-8840-0007-0.
425L100010
b. Insert the differential cage assembly with
bearing outer races into the side bearing bores
of the carrier.
Page 192 of 4264
4B-28 REAR AXLE
425RS030
c. Using two sets of feeler gauges, insert a feele
r
stock of sufficient thickness between each
bearing outer race and the carrier to remove all
end play. Make certain the feeler stock is
pushed to the bottom of the bearing bores.
Mount the dial indicator 5-8840-0126-0 on the
carrier so that the indicator stem is at righ
t
angles to a tooth on the ring gear.
425RW049
d.
Adjust feeler gauge thickness from side to side
until ring gear backlash is in the specified range.
Backlash :
0.15–0.20 mm (0.006–0.008 in)
425RS032
With zero end play and correct backlash
established, remove the feeler gauge packs,
determine the thickness of the shims required
and add 0.05 mm (0.002 in) to each shim pack
to provide side bearing preload. Always use
new shims.
e. Remove side bearing by using remover 5-
8840-0013-0 and 5-8840-0014-0 and adapter
5-8840-2196-0.
415L100001