2009 INFINITI QX56 Factory Service Manual

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Page 1305 of 4171

INFINITI QX56 2009 Factory Service Manual
CARRIER COVERDLN-249
< ON-VEHICLE REPAIR > [REAR FINAL DRIVE: R230]
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CARRIER COVER
Removal and InstallationINFOID:0000000004193558
REMOVAL
1. Remove the rear final dri

Page 1306 of 4171

INFINITI QX56 2009 Factory Service Manual
DLN-250
< REMOVAL AND INSTALLATION >[REAR FINAL DRIVE: R230]
REAR FINAL DRIVE
REMOVAL AND INSTALLATION
REAR FINAL DRIVE
Removal and InstallationINFOID:0000000005877761
REMOVAL
1. Remove the spare tir

Page 1307 of 4171

INFINITI QX56 2009 Factory Service Manual
REAR FINAL DRIVEDLN-251
< REMOVAL AND INSTALLATION > [REAR FINAL DRIVE: R230]
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7. Place a suitable jack under the rear final drive assembly. CAUTION:
Do not place the

Page 1308 of 4171

INFINITI QX56 2009 Factory Service Manual
DLN-252
< REMOVAL AND INSTALLATION >[REAR FINAL DRIVE: R230]
REAR FINAL DRIVE
REAR FINAL DRIVE BREATHER
Fill the rear final drive assembl
y with differential gear oil after installation. Refer to D

Page 1309 of 4171

INFINITI QX56 2009 Factory Service Manual
REAR FINAL DRIVEDLN-253
< DISASSEMBLY AND ASSEMBLY > [REAR FINAL DRIVE: R230]
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DISASSEMBLY AND ASSEMBLY
REAR FINAL DRIVE
Disassembly and AssemblyINFOID:000000000587776

Page 1310 of 4171

INFINITI QX56 2009 Factory Service Manual
DLN-254
< DISASSEMBLY AND ASSEMBLY >[REAR FINAL DRIVE: R230]
REAR FINAL DRIVE
ASSEMBLY INSPECTION AND ADJUSTMENT
Drain the differential gear oil before inspection and adjustment. Refer to
DLN-244,

DLN-254
< DISASSEMBLY AND ASSEMBLY >[REAR FINAL DRIVE: R230]
REAR FINAL DRIVE
ASSEMBLY INSPECTION AND ADJUSTMENT
Drain the differential gear oil before inspection and adjustment. Refer to
DLN-244, "Changing Differential
Gear Oil".
Remove and install the carrier cover as neces sary for inspection and adjustment. Refer to DLN-249,
"Removal and Installation".
Total Preload Torque
1. Remove the side flanges if necessary. Refer to DLN-247, "Removal and Installation".
CAUTION:
The side flanges must removed in or der 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 the 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.
CAUTION:
Select a side bearing adjusting wash er for right and left individually.
Drive Gear Runout
1. Drive pinion lock nut 2. Companion flange 3. Front oil seal
4. Drive pinion front bearing 5. Collapsible spacer 6. Drive pinion rear bearing
7. Drive pinion height adjusting washer 8. Drive pinion 9. Gear carrier
10. Drive gear 11. Pinion mate shaft 12. Lock pin
13. Pinion mate gear 14. Pinion mate thrust washer 15. Side gear
16. Side gear thrust washer 17. Differential case 18. Side bearing
19. Side bearing adjusting washer 20. Bearing cap 21. Carrier cover
22. Filler plug 23. Drain plug 24. Side oil seal
Tool number : ST3127S000 (J-25765-A)
Total preload torque
: Refer to DLN-270, "Inspection and Adjustment"
SPD884
If the total preload torque is greater than specification
On drive pinion bearings: R eplace the collapsible spacer.
On side bearings: Use thinner side b earing adjusting washers by the same
amount on each side. Refer to DLN-270, "Inspection and Adjust-
ment".
If the total preload torque is less than specification On drive pinion bearings: Tighten the drive pinion lock nut.
On side bearings: Use thicker side b earing adjusting washers by the same
amount on each side. Refer to DLN-270, "Inspection and Ad-
justment".
Revision: December 20092009 QX56

Page 1311 of 4171

INFINITI QX56 2009 Factory Service Manual
REAR FINAL DRIVEDLN-255
< DISASSEMBLY AND ASSEMBLY > [REAR FINAL DRIVE: R230]
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1. Fit a dial indicator to the drive gear back face.
2. Rotate the drive gear to measure

Page 1312 of 4171

INFINITI QX56 2009 Factory Service Manual
DLN-256
< DISASSEMBLY AND ASSEMBLY >[REAR FINAL DRIVE: R230]
REAR FINAL DRIVE
If the tooth contact is near the face (face contact), or near the heel
(heel contact), use a thicker drive pinion heigh

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