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DIFFERENTIAL ASSEMBLYDLN-175
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Whenever disassembled, replace.
If wear, deterioration of adherence (sealing force lips ), or damage is detected on the lips, replace them.
Differential Case
Clean up the disassembled parts.
If any wear or crack on the contact sides of the differential case is found, replace.
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DLN-176
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DRIVE PINION
DRIVE PINION
Exploded ViewINFOID:0000000006222396
1. Bushing 2. Bearing cap 3. Side bearing
4. Side bearing adjusting washer 5. Drive pinion 6. Pinion height adjusting washer
7. Pinion rear bearing 8. Collapsible spacer 9. Gasket
10. Drain plug 11. Side oil seal (left side) 12. Pinion front bearing
13. Front oil seal 14. Companion flange 15. Drive pinion lock nut
16. Gear carrier 17. Side shaft 18. Side shaft bearing
19. Snap ring 20. Snap ring 21. Side oil seal (right side)
22. Drive gear 23. Differential case assembly 24. Housing spacer
25. Filler plug 26. Carrier cover
A: Oil seal lip B: Screw hole C. Comply with the assembly proce-
dure when tightening. Refer to DLN-
169, "Assembly".
: Apply gear oil. : Apply anti-corrosion oil.
: Apply multi-purpose grease.
JPDID0390GB
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DRIVE PINIONDLN-177
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DisassemblyINFOID:0000000006222397
1. Remove the side shaft. Refer to DLN-165, "Disa INFINITI QX56 2011 Factory Service Manual
DRIVE PINIONDLN-177
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DisassemblyINFOID:0000000006222397
1. Remove the side shaft. Refer to DLN-165, "Disa](/manual-img/42/57033/w960_57033-1978.png)
DRIVE PINIONDLN-177
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DisassemblyINFOID:0000000006222397
1. Remove the side shaft. Refer to DLN-165, "Disassembly".
2. Remove the differential assembly. Refer to DLN-168, "
Disassembly".
3. Remove the drive pinion lock nut with a flange wrench (commer- cial service tool).
4. Put matching mark (B) on the end of drive pinion. The matching mark should be in line with the matching mark (A) on companion
flange (1).
CAUTION:
For matching, marks use paint. Never damage companion
flange and drive pinion.
5. Remove the companion flange with the puller (commercial ser- vice tool).
6. Press the drive pinion assembly. CAUTION:
Never drop drive pinion assembly.
: Apply Genuine Silicone RTV or equivalent. Refer to GI-22, "Recommended Chemical Products and Sealants".
: Apply Genuine High Strength Thread Locking Sealant or equivalent. Refer to GI-22, "
Recommended Chemical Products
and Sealants".
Refer to GI-4, "
Components" for symbols not described above.
PDIA0702E
PDIA0799J
PDIA0703E
PDIA0704E
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DLN-178
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DRIVE PINION
7. Remove the front oil seal with a suitable tool.
CAUTION:
Never damage gear carrier.
8. Remove the drive pinion front bearing inner race.
9. Remove the collapsible spacer.
10. Remove the drive pinion rear bearing inner race and drive pinion height adjusting washer with the replacer (commercial service
tool).
11. Remove the drive pinion front and rear bearing outer races by tapping them uniformly with a suitable tool.
CAUTION:
Never damage gear carrier.
12. Perform inspection after disassembly. Refer to DLN-184,
"Inspection".
PDIA0716E
S-PD179
PDIA0705E
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DRIVE PINIONDLN-179
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AssemblyINFOID:0000000006222398
1. Install drive pinion rear bearing outer race and d INFINITI QX56 2011 Factory Service Manual
DRIVE PINIONDLN-179
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AssemblyINFOID:0000000006222398
1. Install drive pinion rear bearing outer race and d](/manual-img/42/57033/w960_57033-1980.png)
DRIVE PINIONDLN-179
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AssemblyINFOID:0000000006222398
1. Install drive pinion rear bearing outer race and drive pinion front bearing outer race using Tools.
CAUTION:
First tap the drive pinion bearing outer race until it
becomes flush with the gear carrier.
Never reuse drive pinion fron t and rear bearing outer race.
2. Select pinion height adjusting washer. Refer to DLN-181,
"Adjustment".
3. Install selected drive pinion height adjusting washer (2) to drive pinion. Press pinion rear bearing inner race (1) to it, using drift
(A) [SST: ST30901000 (J-26010-01)].
CAUTION:
Be careful of the direction of pinion height adjusting
washer. (Assemble as shown in the figure.)
Never reuse pinion rear bearing inner race.
4. Assemble collapsible spacer. CAUTION:
Never reuse collapsible spacer.
5. Assemble drive pinion into gear carrier. CAUTION:
Apply gear oil to pinion rear bearing.
6. Assemble pinion front bearing inner race to drive pinion assem- bly.
CAUTION:
Never reuse pinion front bearing inner race.
Apply gear oil to pinion front bearing.
A: Drift bar [SST: ST30611000 (J-25742-1)]
B: Drift [SST: ST30313000 (J-25742-3)]
C: Drift [SST: KV38100200 (J-26233)]
PDIA0707E
PDIA0805J
PDIA0708E
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DLN-180
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DRIVE PINION
7. Using drift [SST: ST33200000 (J-26082)], press the pinion front
bearing inner race to drive pinion as far as drive INFINITI QX56 2011 Factory Service Manual
DLN-180
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DRIVE PINION
7. Using drift [SST: ST33200000 (J-26082)], press the pinion front
bearing inner race to drive pinion as far as drive](/manual-img/42/57033/w960_57033-1981.png)
DLN-180
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DRIVE PINION
7. Using drift [SST: ST33200000 (J-26082)], press the pinion front
bearing inner race to drive pinion as far as drive pinion nut can
be tightened.
8. Install front oil seal as shown in figure with the drifts (A and B). CAUTION:
Never reuse oil seal.
When installing, n ever incline oil seal.
Apply multi-purpose grease onto oil seal lips, and gear oil
onto the circumference of oil seal.
9. Install companion flange (1). NOTE:
When reusing drive pinion, align the matching mark (B) of drive
pinion with the matching mark (A) of companion flange, and then
install companion flange (1).
10. Temporarily tighten drive pinion lock nut to drive pinion. CAUTION:
Apply anti-corrosion oil to th e thread and seat of the drive
pinion lock nut
Never reuse drive pinion lock nut.
11. Tighten to drive pinion lock nut using flange wrench (A), while adjusting pinion bearing preload torque using preload gauge (B).
CAUTION:
Adjust to the lower limit of the drive pinion lock nut tight-
ening torque first.
After adjustment, rotate dri ve pinion back and forth 2 to 3
times to check for unusual no ise, rotation malfunction,
and other malfunctions.
12. Install differential case assembly. Refer to DLN-169, "
Assem-
bly".
CAUTION:
PDIA0709E
A: Drift [SST: ST30720000 (J-25405)]
B: Drift [SST: ST27863000 ( — )]
PDIA0717E
PDIA0799J
A: Flange wrench (commercial service tool)
B: Preload gauge [SST: ST3127S000 (J-25765-A)]
Pinion bearing preload : Refer to DLN-185, "Pre-
load Torque".
WDIA0382E
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DRIVE PINIONDLN-181
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Never install carrier cover yet.
13. Check and adjust drive gear runout, tooth contac INFINITI QX56 2011 Factory Service Manual
DRIVE PINIONDLN-181
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Never install carrier cover yet.
13. Check and adjust drive gear runout, tooth contac](/manual-img/42/57033/w960_57033-1982.png)
DRIVE PINIONDLN-181
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Never install carrier cover yet.
13. Check and adjust drive gear runout, tooth contact, drive gear to drive pinion backlash. Refer to DLN-171,
"Adjustment".
14. Install side shaft. Refer to DLN-166, "
Assembly".
15. Check and adjust companion flange runout. Refer to DLN-181, "
Adjustment".
16. Check total preload torque. Refer to DLN-171, "
Adjustment".
17. Install carrier cover. Refer to DLN-169, "
Assembly".
AdjustmentINFOID:0000000006222399
PINION GEAR HEIGHT
1. Make sure all parts are clean and that the bearings are well
lubricated.
2. Assemble the pinion gear beari ngs into the differential shim
selector tool [SST: — (J-34309)].
Pinion front bearing; make sure the J-34309-3 pinion front
bearing seat is secured tightly against the J-34309-2 gauge
anvil. Then turn the pinion front bearing pilot, J-34309-7, to
secure the bearing in its proper position.
Pinion rear bearing; the pinion rear bearing pilot, J-34309-8,
is used to center the pinion rear bearing only. The pinion rear
bearing locking seat, J-34309-4, is used to lock the bearing to
the assembly.
Installation of J-34309-9 and J-34309-16; place a suitable
2.5 mm (0.098 in) thick plain washer between J-34309-9 and
J-34309-16. Both surfaces of J-34309-9 and J-34309-16 must
be parallel with a clearance of 2.5 mm (0.098 in).
3. Install the pinion rear bearing inner race into gear carrier. Then place the pinion preload shim selector tool, J-34309-1, gauge
screw assembly.
4. Assemble the pinion front bearing inner race and the J-34309-2 gauge anvil. Assemble them together with the J-34309-1 gauge
screw in gear carrier. Make sure that the pinion height gauge
plate, J-34309-16, turns a full 360 degrees. Tighten the two sec-
tions together by hand.
SPD769
SPD197A
SPD893
SPD199A
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DLN-182
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DRIVE PINION
5. Turn the assembly several times to seat the bearings.
6. Measure the turning torque at the end of the J-34309-2 gau INFINITI QX56 2011 Factory Service Manual
DLN-182
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DRIVE PINION
5. Turn the assembly several times to seat the bearings.
6. Measure the turning torque at the end of the J-34309-2 gau](/manual-img/42/57033/w960_57033-1983.png)
DLN-182
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DRIVE PINION
5. Turn the assembly several times to seat the bearings.
6. Measure the turning torque at the end of the J-34309-2 gauge
anvil using preload gauge [SST: ST3127S000 (J-25765-A)].
7. Place the J-34309-10 “R180A” pinion height adapter onto the gauge plate and tighten it by hand.
CAUTION:
Make sure all machined surfaces are clean.
8. Position the side bearing discs, J-25269-18, and arbor firmly into
the side bearing bores. Install the bearing caps and tighten bear-
ing cap mounting bolts to the specified torque. Refer to DLN-
176, "Exploded View".
9. Select the correct standard pinion height adjusting washer thick- ness. Select by using a standard gauge of 3 mm (0.12 in) and J-
34309-101 feeler gauge. Measure the distance between the J-
34309-11 pinion height adapter including the standard gauge
and the arbor.
SPD770
Turning torque specifica-
tion : 1.08 – 1.66 N·m (0.11 –
0.16 kg-m, 10 – 14 in-lb)
PDIA0566E
SPD208A
SPD211A
SPD204A
Revision: 2010 May2011 QX56