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PREPARATION
Special Service ToolINFOID:0000000004921753
The actual shapes of Kent-Moore tools m INFINITI QX56 2008 Factory Service Manual PREPARATIONDLN-235
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Special Service ToolINFOID:0000000004921753
The actual shapes of Kent-Moore tools m](/manual-img/42/57030/w960_57030-1264.png)
PREPARATIONDLN-235
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Special Service ToolINFOID:0000000004921753
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name Description
KV40104000
(—)
Flange wrench Removing and installing drive pinion lock nut
a: 85 mm (3.35 in) dia.
b: 65 mm (2.56 in) dia.
ST33081000
(—)
Adapter Installing differential carrier side bearings
a: 43 mm (1.69 in) dia.
b: 33.5 mm (1.319 in) dia.
ST15310000
(—)
Oil seal drift Installing front oil seal
a: 96 mm (3.78 in) dia.
b: 84 mm (3.31 in) dia.
ST30621000
(—)
Drift Installing drive pinion front and rear bearing
races
a: 79 mm (3.11 in) dia.
b: 59 mm (2.32 in) dia.
ST30022000
(—)
Drift Installing drive pinion bearing
a: 110 mm (4.33 in) dia.
b: 46 mm (1.81 in) dia.
ST35325000
(—)
Drift bar Installing drive pinion front and rear bearing
races
NT659
NT431
ZZA0908D
NT073
ZZA0920D
ZZA1140D
Revision: March 2010
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DLN-236
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PREPARATION
KV381054S0
(J-34286)
Puller Removing front oil seal
ST30720000
(J-25405)
Drift • Installing front oil seal
• Installing drive pinion rear bearing outer
race
a: 77 mm (3.03 in) dia.
b: 55.5 mm (2.185 in) dia.
ST36230000
(J-25840-A)
Sliding hammer Removing side flange
KV40104100
(—)
Attachment Removing side flange
KV38100200
(J-26233)
Drift Installing side oil seal
a: 65 mm (2.56 in) dia.
b: 49 mm (1.93 in) dia.
KV38107900
(J-39352)
Protector Installing side flange
KV38100800
(J-25604-01)
Attachment Securing unit assembly
a: 541 mm (21.30 in)
b: 200 mm (7.87 in)
Tool number
(Kent-Moore No.)
Tool name
Description
ZZA0601D
ZZA0811D
ZZA0803D
ZZA0804D
ZZA1143D
S-NT129
SDIA0267E
Revision: March 2010
2008 QX56
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ST3127S000
(J-25765-A)
Preload gauge
1: GG91030000 (J-25765)
Torque wrench
2: HT62940000 (—)
Socket adapt INFINITI QX56 2008 Factory Service Manual PREPARATIONDLN-237
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ST3127S000
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Preload gauge
1: GG91030000 (J-25765)
Torque wrench
2: HT62940000 (—)
Socket adapt](/manual-img/42/57030/w960_57030-1266.png)
PREPARATIONDLN-237
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ST3127S000
(J-25765-A)
Preload gauge
1: GG91030000 (J-25765)
Torque wrench
2: HT62940000 (—)
Socket adapter (1/2 ″)
3: HT62900000 (—)
Socket adapter (3/8 ″) Measuring drive pinion bearing preload torque
and total preload torque
K V 1 0 1111 0 0
(J-37228)
Seal cutter Removing carrier cover
ST3306S001
(—)
Differential side bearing puller set
1: ST33051001 (J-22888-20)
Puller
2: ST33061000 (J-8107-2)
Base Removing and installing side bearing inner
race
a: 28.5 mm (1.122 in) dia.
b: 38 mm (1.50 in) dia.
ST30031000
(J-22912-01)
Puller Removing drive pinion rear bearing inner race
KV40105230
(—)
Drift Installing drive pinion rear bearing outer race
a: 92 mm (3.62 in) dia.
b: 86 mm (3.39 in) dia.
c: 45 mm (1.77 in) dia.
ST30611000
(J-25742-1)
Drift bar Installing drive pinion front bearing outer race
(Use with ST30613000)
Tool number
(Kent-Moore No.)
Tool name
Description
NT124
S-NT046
NT072
ZZA0700D
PDIA0591E
S-NT090
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PREPARATION
ST30613000
(J-25742-3)
Drift Installing drive pinion front bearing outer race
a: 72 mm (2.83 in) dia.
b: 48 mm (1.89 in) dia.
KV38100300
(J-25523)
Drift Installing side bearing inner race
a: 54 mm (2.13 in) dia.
b: 46 mm (1.81 in) dia.
c: 32 mm (1.26 in) dia.
ST30901000
(J-26010-01)
Drift Installing drive pinion rear bearing inner race
a: 79 mm (3.11 in) dia.
b: 45 mm (1.77 in) dia.
c: 35.2 mm (1.386 in) dia.
HT72400000
(—)
Slide hammer Removing differential case assembly
—
(J-8129)
Spring gauge Measuring turning torque
—
(J-34309)
Differential shim selector tool Adjusting drive pinion bearing preload and
drive pinion height
Tool number
(Kent-Moore No.)
Tool name
Description
ZZA1000D
ZZA1046D
ZZA0978D
S-NT125
NT127
NT134
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Commercial Service ToolINFOID:0000000001604454
—
(J-25269-4)
Side bearing disc (2 Req'd) Selecting drive pinion height adjusting washer
KV10112100
(BT-8653-A)
Angle wrench Tightening bolts for drive gear
Tool number
(Kent-Moore No.)
Tool name
Description
NT136
NT014
Tool name
Description
Spacer Installing drive pinion front bearing inner race
a: 60 mm (2.36 in) dia.
b: 36 mm (1.42 in) dia.
c: 30 mm (1.18 in)
Power tool Loosening nuts and bolts
ZZA1133D
PBIC0190E
Revision: March 2010 2008 QX56
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![INFINITI QX56 2008 Factory Service Manual DLN-240
< SYMPTOM DIAGNOSIS >[REAR FINAL DRIVE: R230]
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING
SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting C INFINITI QX56 2008 Factory Service Manual DLN-240
< SYMPTOM DIAGNOSIS >[REAR FINAL DRIVE: R230]
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING
SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting C](/manual-img/42/57030/w960_57030-1269.png)
DLN-240
< SYMPTOM DIAGNOSIS >[REAR FINAL DRIVE: R230]
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING
SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000001604455
Use the chart below to help you find the cause of the sy mptom. If necessary, repair or replace these parts.
×: ApplicableReference page
DLN-251, "
Disassembly and Assembly
"
DLN-251, "
Disassembly and Assembly
"
DLN-251, "
Disassembly and Assembly
"
DLN-268, "
Inspection and Adjustment
"
DLN-268, "
Inspection and Adjustment
"
MA-12, "
Fluids and Lubricants
"
DLN-192, "
NVH Troubleshooting Chart
"
DLN-240, "
NVH Troubleshooting Chart
"
RSU-5, "
NVH Troubleshooting Chart
"
WT-41, "
NVH Troubleshooting Chart
"
WT-41, "
NVH Troubleshooting Chart
"
RAX-5, "
NVH Troubleshooting Chart
"
BR-6, "
NVH Troubleshooting Chart
"
ST-12, "
NVH Troubleshooting Chart
"
Possible cause and SUSPECTED PARTS
Gear tooth rough
Gear contact improper
Tooth surfaces worn
Backlash incorrect
Companion flange excessive runout
Gear oil improper
PROPELLER SHAFT
REAR AXLE
REAR SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom
Noise××××××× ××××××
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DESCRIPTIONDLN-241
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Cross-Sectional ViewINFOID:0000000001604456
1. Side flange 2. Pinion mate gear3. Drive gear
4. Pinion mate shaft 5. Differential case6. Side bearing
7. Drive pinion 8. Drive pinion front bearing 9. Companion flange
10. Collapsible spacer 11. Drive pinion rear bearing 12. Side gear
WDIA0119E
Revision: March 2010 2008 QX56
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![INFINITI QX56 2008 Factory Service Manual DLN-242
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DIFFERENTIAL GEAR OIL
ON-VEHICLE MAINTENANCE
DIFFERENTIAL GEAR OIL
Changing Differential Gear OilINFOID:0000000001604457
DRAINING
1. Stop the INFINITI QX56 2008 Factory Service Manual DLN-242
< ON-VEHICLE MAINTENANCE >[REAR FINAL DRIVE: R230]
DIFFERENTIAL GEAR OIL
ON-VEHICLE MAINTENANCE
DIFFERENTIAL GEAR OIL
Changing Differential Gear OilINFOID:0000000001604457
DRAINING
1. Stop the](/manual-img/42/57030/w960_57030-1271.png)
DLN-242
< ON-VEHICLE MAINTENANCE >[REAR FINAL DRIVE: R230]
DIFFERENTIAL GEAR OIL
ON-VEHICLE MAINTENANCE
DIFFERENTIAL GEAR OIL
Changing Differential Gear OilINFOID:0000000001604457
DRAINING
1. Stop the engine.
2. Remove the drain plug and gasket from the rear final drive
assembly to drain the differential gear oil.
3. Install the drain plug with a new gasket to the rear final drive assembly. Tighten to the specified torque. Refer to DLN-251,
"Disassembly and Assembly".
CAUTION:
Do not reuse gasket.
FILLING
1. Remove the filler plug and gasket from the rear final drive assembly.
2. Fill the rear final drive assembly with new differential gear oil until the level reaches the specified level near the filler plug hole.
3. Install the filler plug with a new gasket on it to the rear final drive assembly. Tighten to the specified torque. Refer to DLN-251,
"Disassembly and Assembly".
CAUTION:
Do not reuse gasket.
Checking Differential Gear OilINFOID:0000000001604458
OIL LEAKAGE AND OIL LEVEL
1. Make sure that differential gear oil is not leaki ng from the rear final drive assembly or around it.
2. Check the differential gear oil level from the filler plug hole as shown.
CAUTION:
Do not start engine while checki ng differential gear oil level.
3. Install the filler plug with a new gasket on it to the rear final drive assembly. Tighten to the specified torque. Refer to DLN-251,
"Disassembly and Assembly".
CAUTION:
Do not reuse gasket.
LLIA0068E
Differential gear oil
grade and capacity : Refer to MA-12, "Fluids and
Lubricants".
LLIA0068E
LLIA0068E
Revision: March 2010
2008 QX56