2007 INFINITI QX56 Factory Service Manual

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Page 1905 of 3061

INFINITI QX56 2007 Factory Service Manual FFD-6
< SERVICE INFORMATION >
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000003532587
Use the chart b

Page 1906 of 3061

INFINITI QX56 2007 Factory Service Manual DIFFERENTIAL GEAR OIL
FFD-7
< SERVICE INFORMATION >
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DIFFERENTIAL GEAR OIL
Changing Differential Gear OilINFOID:0000000003532588
DRAINING
1. Stop the engine.
2. Remove

Page 1907 of 3061

INFINITI QX56 2007 Factory Service Manual FFD-8
< SERVICE INFORMATION >
FRONT OIL SEAL
FRONT OIL SEAL
Removal and InstallationINFOID:0000000003532590
REMOVAL
1. Remove the drive shafts from the front final drive assembly. Refer to FAX-7, "Rem

Page 1908 of 3061

INFINITI QX56 2007 Factory Service Manual FRONT OIL SEAL
FFD-9
< SERVICE INFORMATION >
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INSTALLATION
1. Apply multi-purpose grease to the lips of the new front oil seal.
Then drive the new front oil seal in eve

FRONT OIL SEAL
FFD-9
< SERVICE INFORMATION >
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INSTALLATION
1. Apply multi-purpose grease to the lips of the new front oil seal.
Then drive the new front oil seal in evenly to the gear carrier
using Tool.
CAUTION:
• Do not reuse front oil seal.
• Do not incline the new front oil seal when installing.
• Apply multi-purpose grease to the lips of the new front oil
seal.
2. Install the companion flange to the drive pinion while aligning the matching marks.
3. Apply anti-corrosive oil to the threads of the drive pinion and the
seating surface of the new drive pinion lock nut. Then adjust the
drive pinion lock nut tightening torque using Tool A, and check
the total preload torque using Tool B.
• The total preload torque should be within the total preload
torque specification. When not replacing the collapsible
spacer, it should also be equal to the measurement taken dur-
ing removal plus an additional 0.56 N·m (0.06 Kg-m, 5 in-lb).
• If the total preload torque is low, tighten the drive pinion lock
nut in 6.8 N·m (0.69 Kg-m, 5ft-lb) increments until the total pre-
load torque is met.
CAUTION:
• Do not reuse drive pinion lock nut.
• Apply anti-corrosive oil to the threads of the drive pinion
and the seating surface of the new drive pinion lock nut.
• Adjust the drive pinion lock nut tightening torque to the
lower limit first. Do not exceed the drive pinion lock nut
specified torque. Refer to FFD-13, "
Disassembly and Assembly".
• Do not loosen drive pinion lock nut to adjust the total preload torque. If the drive pinion lock nut
torque or the total preload torque exceeds the specifications, replace the collapsible spacer and
tighten it again to adjust. Refer to FFD-13, "
Disassembly and Assembly".
• After adjustment, rotate drive pinion back and forth 2 to 3 times to check for unusual noise, rota-
tion malfunction, and other malfunctions.
4. Installation of the remaining components is in the reverse order of removal.
CAUTION:
Check the differential gear oil level after installation. Refer to FFD-7
. Tool number : KV38100500 (J-25273)
BDIA0003E
Tool number A: KV38108300 ( — )
B: ST3127S000 (J-25765-A)
Total preload torque: Refer to FFD-13, "
Disassem-
bly and Assembly".
WDIA0381E

Page 1909 of 3061

INFINITI QX56 2007 Factory Service Manual FFD-10
< SERVICE INFORMATION >
SIDE OIL SEAL
SIDE OIL SEAL
Removal and InstallationINFOID:0000000003532591
REMOVAL
1. Remove the front final drive assembly. Refer to FFD-12, "Removal and Installation"

Page 1910 of 3061

INFINITI QX56 2007 Factory Service Manual CARRIER COVER
FFD-11
< SERVICE INFORMATION >
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CARRIER COVER
Removal and InstallationINFOID:0000000003532592
REMOVAL
1. Remove the front final drive assembly. Refer to F

Page 1911 of 3061

INFINITI QX56 2007 Factory Service Manual FFD-12
< SERVICE INFORMATION >
FRONT FINAL DRIVE ASSEMBLY
FRONT FINAL DRIVE ASSEMBLY
Removal and InstallationINFOID:0000000003532593
REMOVAL
1. Drain the differential gear oil. Refer to FFD-7.
2. Remo

Page 1912 of 3061

INFINITI QX56 2007 Factory Service Manual FRONT FINAL DRIVE ASSEMBLY
FFD-13
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7. Remove the front final drive assembly bolts, then remove the
front final drive assembly.
CAUTION:
Support

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