2004 INFINITI QX56 Factory Service Manual

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Page 2849 of 3371

INFINITI QX56 2004 Factory Service Manual RFD-18
REAR FINAL DRIVE ASSEMBLY
Revision: August 20072004 QX56
2. Install the pinion mate shaft into the differential case so that it
meets the lock pin holes.
3. Adjust the clearance between rear fa

Page 2850 of 3371

INFINITI QX56 2004 Factory Service Manual REAR FINAL DRIVE ASSEMBLY
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Revision: August 20072004 QX56
4. Install the side bearing caps in their original locations marked
during disassembly, and tighten the beari

Page 2851 of 3371

INFINITI QX56 2004 Factory Service Manual RFD-20
REAR FINAL DRIVE ASSEMBLY
Revision: August 20072004 QX56
1. Thoroughly clean the drive gear and drive pinion teeth.
2. Lightly apply a mixture of powdered ferric oxide and oil or the
equivalent

Page 2852 of 3371

INFINITI QX56 2004 Factory Service Manual REAR FINAL DRIVE ASSEMBLY
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3. Apply genuine medium strength locking sealant or equivalent as
shown. Refer to GI-45, "
Recommended Chemic

Page 2853 of 3371

INFINITI QX56 2004 Factory Service Manual RFD-22
REAR FINAL DRIVE ASSEMBLY
Revision: August 20072004 QX56
3. Install the selected pinion height adjusting washer in the drive
pinion. Using a suitable press and Tool, press-fit pinion rear
beari

Page 2854 of 3371

INFINITI QX56 2004 Factory Service Manual REAR FINAL DRIVE ASSEMBLY
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8. Tighten the drive pinion nut by very small increments until the
specified preload is achieved, when checki

Page 2855 of 3371

INFINITI QX56 2004 Factory Service Manual RFD-24
REAR FINAL DRIVE ASSEMBLY
Revision: August 20072004 QX56
6. Measure the drive gear-to-drive pinion backlash with a dial indi-
cator at several points.
If the backlash is less than specificatio

RFD-24
REAR FINAL DRIVE ASSEMBLY
Revision: August 20072004 QX56
6. Measure the drive gear-to-drive pinion backlash with a dial indi-
cator at several points.
If the backlash is less than specification, adjust the washer thickness. Decrease the thickness of the left
washer and increase the thickness of the right washer by the same amount.
If the backlash is greater than specification, adjust the washer thickness. Increase the thickness of the
left washer and decrease the thickness of the right washer by the same amount.
Never change the total amount of the washers as it will change the bearing preload.
7. Check the total preload using Tool.
When checking the preload, turn the drive pinion in both direc-
tions several times to seat the bearing rollers correctly.
If the preload is greater than specification, remove the same amount of washer thickness from each
side.
If the preload is less than specification, add the same amount of washer thickness to each side.
Never add or remove a different amount of washer thickness from each side. A difference in the amount
of washer thickness will change the drive gear-to-drive pinion backlash.
8. Recheck the drive gear-to-drive pinion backlash. Increase or decrease in thickness of the washers will
change the drive gear-to-drive pinion backlash.
Check whether the backlash varies excessively in different places. Foreign matter may be caught
between the drive gear and the differential case causing the variation in backlash.
The backlash can vary greatly even when the drive gear runout is within specification. To correct this
variation, replace the hypoid gear set or differential case.
9. Check runout of drive gear using a dial indicator.
10. Check the tooth contact.
Refer to RFD-19, "
TOOTH CONTACT" . Drive gear to drive pinion backlash : 0.13 - 0.18 mm
(0.0051 - 0.0070 in)
SPD5 13
Tool number : ST3127S000 (J-25765-A)
SPD8 84
Total preload : 2.05 - 4.11 N·m (0.21 - 0.42 kg-m, 19 - 36 in-lb)
Runout limit : 0.05 mm (0.0020 in) or less
SPD5 24

Page 2856 of 3371

INFINITI QX56 2004 Factory Service Manual REAR FINAL DRIVE ASSEMBLY
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11. Install the rear cover on the gear carrier. Apply Genuine NISSAN
RTV Sealant or equivalent, to the rear c

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