2008 INFINITI QX56 Factory Service Manual

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Page 1241 of 4083

INFINITI QX56 2008 Factory Service Manual CARRIER COVERDLN-211
< ON-VEHICLE REPAIR > [FRONT FINAL DRIVE: M205]
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CARRIER COVER
Removal and InstallationINFOID:0000000001604447
REMOVAL
1. Remove the front final dr

Page 1242 of 4083

INFINITI QX56 2008 Factory Service Manual DLN-212
< REMOVAL AND INSTALLATION >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
REMOVAL AND INSTALLATION
FRONT FINAL DRIVE
Removal and InstallationINFOID:0000000001604448
REMOVAL
1. Drain the differen

Page 1243 of 4083

INFINITI QX56 2008 Factory Service Manual FRONT FINAL DRIVEDLN-213
< REMOVAL AND INSTALLATION > [FRONT FINAL DRIVE: M205]
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7. Remove the front final drive assembly bolts, then remove the front final drive assem

Page 1244 of 4083

INFINITI QX56 2008 Factory Service Manual DLN-214
< DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
DISASSEMBLY AND ASSEMBLY
FRONT FINAL DRIVE
Disassembly and AssemblyINFOID:0000000001604449
COMPONENTS
1. Side bearing ad

Page 1245 of 4083

INFINITI QX56 2008 Factory Service Manual FRONT FINAL DRIVEDLN-215
< DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: M205]
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ASSEMBLY INSPECTION AND ADJUSTMENT
• Drain the differential gear oil before inspectio

FRONT FINAL DRIVEDLN-215
< DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: M205]
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ASSEMBLY INSPECTION AND ADJUSTMENT
• Drain the differential gear oil before inspection and adjustment. Refer to DLN-207, "Changing Differential
Gear Oil".
• Remove and install the carrier cover as necessary for inspection and adjustment. Refer to DLN-211,
"Removal and Installation".
Total Preload Torque
1. Install the differential side shaft and differential side flange if necessary.
CAUTION:
The differential side shaft and differential side flange must be installed in order to measure total
preload torque.
2. Rotate the drive pinion back and forth 2 to 3 times to check for unusual noise and rotation malfunction.
3. Rotate the drive pinion at least 20 times to check for smooth operation of the bearings.
4. Measure total preload torque using Tool.
NOTE:
Total preload torque = Drive pinion bearing preload torque +
Side bearing preload torque
• If the measured value is out of the specification, check and adjust each part. Adjust the drive pinion
bearing preload torque first, then adjust the side bearing preload torque.
Drive Gear Runout
1. Fit a dial indicator to the drive gear back face.
2. Rotate the drive gear to measure runout.
• If the runout is outside of the limit, check the condition of the drive
gear assembly. Foreign material may be caught between the drive
gear and differential case, or the differential case or drive gear may
be deformed.
CAUTION:
Replace drive gear and drive pinion as a set.
Tooth Contact
28. Plate 29. Differential case30. Drive gear
31. Side bearing cap 32. Filler plug33. Carrier cover
34. Bushing 35. Bearing36 Screw
37 Dowel pin
Tool number : ST3127S000 (J-25765-A)
Total preload torque : Refer to DLN-231, "
Inspection and Adjust-
ment"
PDIA0697E
If the total preload torque is greater than specification
On drive pinion b earings: Replace the collapsible spacer.
On side bearings: Loosen the side bearin g adjuster by the same amount on each
side.
If the total preload torque is less than specification
On drive pinion bearings: Tighten the drive pinion lock nut.
On side bearings: Tighten the side bear ing adjuster by the same amount on each
side.
Runout limit: 0.08 mm (0.0031 in) or less
SPD886
Revision: March 2010 2008 QX56

Page 1246 of 4083

INFINITI QX56 2008 Factory Service Manual DLN-216
< DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
1. Apply red lead to the drive gear.
NOTE:
Apply red lead to both faces of three to four gears, at four loca-
tions even

Page 1247 of 4083

INFINITI QX56 2008 Factory Service Manual FRONT FINAL DRIVEDLN-217
< DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: M205]
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Backlash
1. Fit a dial indicator to the drive gear face to measure the back-
lash.
•

Page 1248 of 4083

INFINITI QX56 2008 Factory Service Manual DLN-218
< DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
2. Remove the differential side shaft and differential side flange
using suitable tool.
3. Remove the extension tube and

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