2005 INFINITI QX4 Factory Service Manual

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Page 2865 of 3419

INFINITI QX4 2005 Factory Service Manual RFD-18
REAR FINAL DRIVE ASSEMBLY
Revision: October 20052005 QX56
4. Drive the pinion mate shaft lock pin out from the drive gear side
using a suitable punch.
INSPECTION
Contact Surfaces
1. Clean the d

Page 2866 of 3419

INFINITI QX4 2005 Factory Service Manual REAR FINAL DRIVE ASSEMBLY
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2. Install the pinion mate shaft into the differential case so that it
meets the lock pin holes.
3. Adjust t

Page 2867 of 3419

INFINITI QX4 2005 Factory Service Manual RFD-20
REAR FINAL DRIVE ASSEMBLY
Revision: October 20052005 QX56
4. Install the side bearing caps in their original locations marked
during disassembly, and tighten the bearing cap bolts to specifi-
c

Page 2868 of 3419

INFINITI QX4 2005 Factory Service Manual REAR FINAL DRIVE ASSEMBLY
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1. Thoroughly clean the drive gear and drive pinion teeth.
2. Lightly apply a mixture of powdered ferric oxi

Page 2869 of 3419

INFINITI QX4 2005 Factory Service Manual RFD-22
REAR FINAL DRIVE ASSEMBLY
Revision: October 20052005 QX56
3. Apply genuine medium strength locking sealant or equivalent as
shown. Refer to GI-45, "
Recommended Chemical Products and
Sealants"

Page 2870 of 3419

INFINITI QX4 2005 Factory Service Manual REAR FINAL DRIVE ASSEMBLY
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3. Install the selected pinion height adjusting washer in the drive
pinion. Using a suitable press and Tool,

Page 2871 of 3419

INFINITI QX4 2005 Factory Service Manual RFD-24
REAR FINAL DRIVE ASSEMBLY
Revision: October 20052005 QX56
8. Tighten the drive pinion nut by very small increments until the
specified preload is achieved, when checking the preload, turn
drive

Page 2872 of 3419

INFINITI QX4 2005 Factory Service Manual REAR FINAL DRIVE ASSEMBLY
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6. Measure the drive gear-to-drive pinion backlash with a dial indi-
cator at several points.
If the backla

REAR FINAL DRIVE ASSEMBLY
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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-14, "
TOOTH CONTACT" . Drive gear to drive pinion backlash : 0.13 - 0.18 mm
(0.0051 - 0.0070 in)
SPD5 13
Tool number : ST3127S000
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

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