2006 INFINITI QX56 Factory Service Manual

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Page 2033 of 3383

INFINITI QX56 2006 Factory Service Manual FFD-10
SIDE OIL SEAL
Revision: November 20092006 QX56
SIDE OIL SEALPFP:33142
Removal and InstallationEDS00454
REMOVAL
1. Remove the front final drive assembly. Refer to FFD-12, "REMOVAL" .
2. Remove t

Page 2034 of 3383

INFINITI QX56 2006 Factory Service Manual CARRIER COVERFFD-11
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Revision: November 2009 2006 QX56
CARRIER COVERPFP:38351
Removal and InstallationEDS00455
REMOVAL
1. Remove the front final drive assembly. Refer to FFD-

Page 2035 of 3383

INFINITI QX56 2006 Factory Service Manual FFD-12
FRONT FINAL DRIVE ASSEMBLY
Revision: November 20092006 QX56
FRONT FINAL DRIVE ASSEMBLYPFP:38500
Removal and InstallationEDS00456
REMOVAL
1. Drain the differential gear oil. Refer to FFD-7, "DIF

Page 2036 of 3383

INFINITI QX56 2006 Factory Service Manual FRONT FINAL DRIVE ASSEMBLYFFD-13
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Revision: November 2009 2006 QX56
7. Remove the front final drive assembly bolts, then remove the
front final drive assembly.
CAUTION:
Suppo

Page 2037 of 3383

INFINITI QX56 2006 Factory Service Manual FFD-14
FRONT FINAL DRIVE ASSEMBLY
Revision: November 20092006 QX56
Disassembly and AssemblyEDS00457
COMPONENTS
1. Side bearing adjuster2. Side bearing 3. Side gear thrust washer
4. Side gear 5. Lock p

Page 2038 of 3383

INFINITI QX56 2006 Factory Service Manual FRONT FINAL DRIVE ASSEMBLYFFD-15
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Revision: November 2009 2006 QX56
ASSEMBLY INSPECTION AND ADJUSTMENT
Drain the differential gear oil before inspection and adjustment. Refe

FRONT FINAL DRIVE ASSEMBLYFFD-15
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Revision: November 2009 2006 QX56
ASSEMBLY INSPECTION AND ADJUSTMENT
Drain the differential gear oil before inspection and adjustment. Refer to FFD-7, "DIFFERENTIAL GEAR
OIL" .
Remove and install the carrier cover as necessary for inspection and adjustment. Refer to FFD-11, "CAR-
RIER COVER" .
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.
34. Bushing 35. Bearing36 Screw
37 Dowel pin
Tool number : ST3127S000 (J-25765-A)
Total preload torque: 2.98 - 4.76 N·m (0.31 - 0.48 kg-m, 27 - 42 in-lb)
PDIA0697E
If the total preload torque is greater than specificationOn drive pinion bearings: Replace the collapsible spacer.
On side bearings: Loosen the side bearing 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 bearing adjuster by the same amount on each side.
Runout limit: 0.08 mm (0.0031 in) or less
SPD886

Page 2039 of 3383

INFINITI QX56 2006 Factory Service Manual FFD-16
FRONT FINAL DRIVE ASSEMBLY
Revision: November 20092006 QX56
Tooth Contact
1. Apply red lead to the drive gear.
NOTE:
Apply red lead to both faces of three to four gears, at four loca-
tions eve

Page 2040 of 3383

INFINITI QX56 2006 Factory Service Manual FRONT FINAL DRIVE ASSEMBLYFFD-17
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Revision: November 2009 2006 QX56
If the tooth contact is near the flank (flank contact), or near the
toe (toe contact), use a thinner driv

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