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RFD-2
PREPARATION
Revision: August 20072004 QX56
PREPARATIONPFP:00002
Special Service ToolsEDS0 02 JH
The actual shapes of the Kent-Moore tools may differ from those of the special service tools illustrated here.
Tool name
Tool number
(Kent-Moore No.)Description
Drift
ST15310000
(—)
Installing front oil seal
Installing drive pinion rear bearing outer
race.
a: 96 mm (3.77 in) dia.
b: 84 mm (3.30 in) dia.
Drift
ST35271000
(—)Installing side oil seal
a: 72 mm (2.83 in) dia.
b: 63 mm (2.48 in) dia.
Protector
KV38107900
(J-39352)Installing side flange
Attachment
KV38100800
(J-25604-01) Fixing unit assembly
a: 541 mm (21.30 in) dia.
b: 200 mm (7.87 in) dia.
Differential side bearing puller set
ST3306S001
(—)
1.ST33051001
(—)
2.ST33061000
(J-8107-2)Removing side bearing inner race
a: 28.5 mm (1.122 in) dia.
b: 38 mm (1.50 in) dia.
Drift
ST30621000
(—)Installing drive pinion front bearing outer race
a: 79 mm (3.11 in) dia.
b: 59 mm (2.32 in) dia.
ZZA0811D
ZZA1143D
S-NT129
SDIA0267E
NT072
ZZA0810D
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PREPARATION
RFD-3
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Drift
KV38100200
(J-26233)Installing side bearing inner race
a: 65 mm (2.55 in) dia.
b: 49 mm (1.92 in) dia.
Drive pinion flange wrench
KV40104000
(—)Removing and installing drive pinion nut
a: 85 mm (3.35 in) dia.
b: 65 mm (2.56 in) dia.
Slide hammer
ST36230000
(J-25840-A)Removing side flange
Axle stand
KV40104100
(—)Removing side flange
Slide hammer
HT72400000
(—)Removing differential case assembly
Drift
ST35325000
(—)Installing drive pinion rear bearing outer race
(use with ST30621000)
Preload gauge
ST3127S000
(J-25765-A)
1. Torque wrench
GG91030000
(J-25765)
2. Socket adapter (1/2 in)
HT62940000
(—)
3. Socket adapter (3/8 in)
HT62900000
(—)Measuring pinion bearing preload and total
preload Tool name
Tool number
(Kent-Moore No.)Description
ZZA1143D
NT659
ZZA0803D
ZZA0804D
S-NT125
S-NT090
NT124
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RFD-4
PREPARATION
Revision: August 20072004 QX56
Commercial Service ToolsEDS002JI
Side bearing outer race puller
ST33290001
(J-34286)Removing front oil seal
Drift
ST33081000
(—)Installing side bearing
a: 43 mm (1.69 in) dia.
b: 33.5 mm (1.31 in) dia.
Bearing puller
ST30021000
(—)Removing drive pinion rear bearing inner
race
Drift
ST30022000
(—)Installing drive pinion rear bearing inner race
a: 110 mm (4.33 in) dia.
b: 46 mm (1.81 in) dia. Tool name
Tool number
(Kent-Moore No.)Description
ZZA0601D
ZZA0810D
ZZA0700D
ZZA0920D
Tool nameDescription
Power toolRemoving bolts and nuts
PBIC0190E
Page 2836 of 3371

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
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NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartEDS002JJ
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: Applicable Reference page
RFD-17RFD-19RFD-19RFD-12—
MA-10, "
Fluids and Lubricants
"
PR-3, "
NVH Troubleshooting Chart
"
FA X - 4
(FAX), RAX-4
(RAX), FSU-4
(FSU), RFD-5
(RSU)
WT-3, "
NVH Troubleshooting Chart
"
WT-3, "
NVH Troubleshooting Chart
"
FA X - 4 , "
NVH Troubleshooting Chart
" (front)
RAX-4, "
NVH Troubleshooting Chart
" (rear)
BR-5, "
NVH Troubleshooting Chart
"
PS-5, "
NVH Troubleshooting Chart
"
Possible cause and SUSPECTED PARTS
Rough gear tooth
Improper gear contact
Tooth surfaces worn
Incorrect backlash
Companion flange excessive runout
Improper gear oil
PROPELLER SHAFT
AXLE AND SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom FINAL DRIVE Noise×××××××××××××
Page 2837 of 3371

RFD-6
FRONT OIL SEAL
Revision: August 20072004 QX56
FRONT OIL SEALPFP:38189
Removal and InstallationEDS002JK
REMOVAL
1. Remove the drive shaft inside flange bolts to disconnect the rear drive shafts from the rear final drive.
Support the rear drive shafts using suitable wire.
NOTE:
Disconnecting the rear drive shafts is necessary to measure the total preload accurately.
2. Remove the rear propeller shaft. Refer to PR-8, "
Removal and Installation" .
CAUTION:
Do not damage the propeller shaft tube.
3. Check the total preload. Refer to RFD-12, "
TOTAL PRELOAD" .
4. Put a mark on the end of the drive pinion corresponding to the
position mark “B” on the companion flange as shown.
CAUTION:
Use paint to make the matching mark “B” on the drive
pinion. Never damage the drive pinion.
The mark “B” on the companion flange indicates the
maximum vertical runout position.
5. Remove drive pinion nut using Tool as shown.
Discard the drive pinion nut and use a new drive pinion nut for
installation.
6. Use a suitable puller to remove the companion flange as shown.
SDIA0270E
Tool number : KV40104000 ( — )
LDIA0105E
LDIA0106E
Page 2838 of 3371

FRONT OIL SEAL
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7. Remove the front oil seal using Tool as shown.
INSTALLATION
1. Apply multi-purpose grease to the sealing lips of the new oil
seal, then press the front oil seal into the carrier using Tool as
shown.
CAUTION:
Keep the oil seal even when installing, do not tilt the oil
seal when pressing it in.
Discard the old oil seal, always install a new oil seal.
2. Align the matching mark of the drive pinion with the matching
mark “B” of the companion flange as shown, then install the
companion flange.
3. Apply oil or multi-purpose grease on the drive pinion threads
and the seating surface of drive pinion nut.
4. Install drive pinion nut using Tool.
Tighten the drive pinion nut to the minimum specified torque.
Final drive pinion nut torque will be determined when adjust-
ing the total preload. Refer to RFD-12, "
TOTAL PRELOAD" .
CAUTION:
The drive pinion nut is not reusable. Use a new drive pinion
nut for installation.
5. Install the rear propeller shaft. Refer to PR-8, "
Removal and Installation" .
6. Connect the rear drive shafts to the rear final drive. Tighten the drive shaft inside flange bolts to specifica-
tion.
7. Check the rear final drive fluid and add fluid as necessary. Refer to MA-24, "
Checking Final Drive Oil" . Tool number : ST33290001 (J-34286)
LDIA0107E
Tool number : ST15310000 ( — )
LDIA0108E
SDIA0270E
Tool number : KV40104000 ( — )
Drive pinion nut : 167 - 372 N·m (17 - 38 kg-m,
124 - 274 ft-lb)
LDIA0105E
Drive shaft inside flange bolt : 118 N·m (12 kg-m, 87 ft-lb)
Page 2839 of 3371

RFD-8
SIDE OIL SEAL
Revision: August 20072004 QX56
SIDE OIL SEALPFP:33142
Removal and InstallationEDS002JL
REMOVAL
1. Remove the drive shaft inside flange bolts to disconnect the rear drive shafts from the rear final drive.
Support the rear drive shaft using a suitable wire.
2. Remove the side flange using Tools as shown.
a. Install Tool “A” on the side flange.
b. Pull the side flange out using Tool “B” as shown.
3. Remove the side oil seal using a suitable tool as shown.
INSTALLATION
1. Apply multi-purpose grease to the sealing lips of the side oil seal.
2. Press-fit the new side oil seal using Tool, until the front surface
of the side oil seal is level with the end surface of the housing.
CAUTION:
Keep the side oil seal even when installing, do not tilt the
side oil seal when pressing it in.
Discard the old side oil seal, always install a new side oil
seal.
3. Install the side flange using Tool.
a. Attach Tool to the side oil seal as shown.
b. After the side flange is inserted and the serrated part of the side
gear has engaged the serrated part of the flange, remove Tool.
c. Position a suitable drift on the center of the side flange, then
drive it in until the sound changes.
NOTE:
When the installation is complete, the driving sound of the side
flange turns into a sound which seems to affect the whole final
drive.Tool number A: KV40104100 ( — )
Tool number B: ST36230000 (J-25840–A)
Circlip installed position : Final drive side
LDIA0110E
LDIA0109E
Tool number : ST35271000 ( — )
LDIA0111E
Tool number : KV38107900 (J-39352)
SDIA0822E
Page 2840 of 3371
SIDE OIL SEAL
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4. Check measurement “A” after the side flange installation is com-
plete as shown.
5. Connect the rear drive shafts to the rear final drive. Tighten the drive shaft inside flange bolts to specifica-
tion.Measurement “A” : approx. 339.5 mm (13.37 in)
SDIA1039E
Drive shaft inside flange bolts : 118 N·m (12 kg-m, 87 lb-ft)