Page 2721 of 3383
PR-2
PREPARATION
Revision: November 20092006 QX56
PREPARATIONPFP:00002
Commercial Service ToolsEDS001W3
Tool nameDescription
Power tool Loosening bolts and nuts
PBIC0190E
Page 2722 of 3383

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTINGPR-3
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Revision: November 2009 2006 QX56
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartEDS001W4
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
PR-4
(front)
PR-8 (rear)
PR-4 (front)
PR-8 (rear)
PR-4 (front)
PR-8 (rear)
FFD-6, "
NVH Troubleshooting Chart
"
RFD-7, "
NVH Troubleshooting Chart
"
FAX-4, "
NVH Troubleshooting Chart
"
RAX-4, "
NVH Troubleshooting Chart
"
FSU-4, "
NVH Troubleshooting Chart
"
RSU-5, "
NVH Troubleshooting Chart
"
WT-4, "
NVH Troubleshooting Chart
"
WT-4, "
NVH Troubleshooting Chart
"
PR-3, "
NVH Troubleshooting Chart
"
BR-5, "
NVH Troubleshooting Chart
"
PS-5, "
NVH Troubleshooting Chart
"
Possible cause and suspected parts
Uneven rotation torque
Rotation imbalance
Excessive run out
Differential
Axle
Suspension
Tires
Road wheel
Drive shaft
Brakes
Steering
Symptom Noise
×××××××××××
Shake ×××××××
Vibration ××××××××
Page 2723 of 3383

PR-4
FRONT PROPELLER SHAFT
Revision: November 20092006 QX56
FRONT PROPELLER SHAFTPFP:37200
On-Vehicle ServiceEDS001W5
PROPELLER SHAFT VIBRATION
NOTE:
If a vibration is present at high speed, inspect the propeller shaft run out first.
1. Measure the run out of the propeller shaft tube at several points
by rotating the final drive companion flange with your hands.
2. If the run out still exceeds specifications, disconnect the propel- ler shaft at the final drive companion flange; then rotate the com-
panion flange 90 °, 180 °, 270 ° degrees and reconnect the
propeller shaft.
3. Check the run out again. If the run out still exceeds specifica- tions, replace the propeller shaft assembly.
4. After installation, check for vibration by driving the vehicle.
INSPECTION
Inspect the propeller shaft tube for dents or cracks. If damaged, replace the propeller shaft assembly.
Removal and InstallationEDS001W6
Model 2F1310
Propeller shaft run out limit : 0.6 mm (0.024 in) or less
SDIA1759E
WDIA0047E
1. Propeller shaft tube 2. Snap ring 3. Journal bearing
4. Journal 5. Flange yoke
Page 2724 of 3383

FRONT PROPELLER SHAFTPR-5
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Revision: November 2009 2006 QX56
REMOVAL
1. Put matching marks on the front propeller shaft flange yoke and
the companion flange of the front final drive as shown.
CAUTION:
For matching marks, use paint. Never damage the flange
yoke and companion flange of the front final drive.
2. Remove the bolts and then remove the front propeller shaft from the front final drive and transfer.
INSPECTION AFTER REMOVAL
Inspect the propeller shaft run out. If run out exceeds the limit,
replace the propeller shaft assembly.
While holding the flange yoke on one side, check axial play of
the joint as shown. If the journal axial play exceeds the specifi-
cation, repair or replace as necessary.
Check the propeller shaft for bend and damage. If damage is
detected, replace the propeller shaft assembly.
INSTALLATION
Installation is in the reverse order of removal.
After installation, check for vibration by driving the vehicle. Refer to PR-3, "NVH Troubleshooting Chart" .
CAUTION:
Do not reuse the bolts and nuts. Always install new ones.
Disassembly and AssemblyEDS001W7
DISASSEMBLY
Journal
1. Put matching marks on the front propeller shaft and flange yoke as shown.
CAUTION:
For matching marks, use paint. Never damage the front pro-
peller shaft or flange yoke.
SDIA2046E
Run out limit : 0.6 mm (0.024 in) or less
LDIA0118E
Journal axial play : 0.02 mm (0.0008 in) or less
LDIA0117E
SPD128
Page 2725 of 3383
PR-6
FRONT PROPELLER SHAFT
Revision: November 20092006 QX56
2. Remove the snap ring.
3. Push out and remove the journal bearing by lightly tapping the
yoke with a hammer, taking care not to damage the journal or
yoke hole.
4. Remove the bearing at the opposite side in above operation. NOTE:
Put marks on the disassembled parts so that they can be rein-
stalled in their original positions from which they were removed.
ASSEMBLY
Journal
1. Assemble the journal bearings. Apply multipurpose grease onthe bearing inner surface.
NOTE:
During assembly, use caution so that the needle bearings do not
fall down.
APD011
SPD732
SPD131
WPD019
Page 2726 of 3383
FRONT PROPELLER SHAFTPR-7
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Revision: November 2009 2006 QX56
2. Select snap rings that will provide the specified play in an axial
direction of the journal, and install them. Refer to PR-13, "
Snap
Ring" .
NOTE:
Select snap rings with a difference in thickness at both sides
within 0.02 mm (0.0008 in).
3. Adjust the thrust clearance between the bearing and snap ring to zero by tapping the yoke.
4. Make sure that the journal moves smoothly and is below the joint flex effort specification.
APD012
SPD732
Joint flex effort : 1.96 N·m (0.20 kg-m, 17 in-lb) or less
LDIA0119E
Page 2727 of 3383

PR-8
REAR PROPELLER SHAFT
Revision: November 20092006 QX56
REAR PROPELLER SHAFTPFP:37000
On-Vehicle ServiceEDS001W8
PROPELLER SHAFT VIBRATION
NOTE:
If vibration is present at high speed, check propeller shaft run out first, then check mounting between propeller
shaft and companion flange.
1. Measure the run out of the propeller shaft tube at several points
by rotating the final drive companion flange with your hands.
2. If the run out still exceeds specifications, disconnect the propel- ler shaft at the final drive companion flange; then rotate the com-
panion flange 90 °, 180 °, 270 ° degrees and reconnect propeller
shaft.
3. Check the run out again. If the run out still exceeds specifica- tions, replace the propeller shaft assembly.
4. After installation, check for vibration by driving vehicle.
INSPECTION
Inspect the propeller shaft tube for dents or cracks. If damaged, replace the propeller shaft assembly.
Removal and InstallationEDS001W9
Model 2S1350
Propeller shaft run out limit : 1.02 mm (0.0402 in) or less
SDIA1781E
WDIA0048E
1. Propeller shaft tube 2. Snap ring 3. Journal bearing
4. Sleeve yoke 5. Journal 6. Flange yoke
Page 2728 of 3383

REAR PROPELLER SHAFTPR-9
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Revision: November 2009 2006 QX56
REMOVAL
1. Move the A/T select lever to the N position and release the parking brake.
2. Put matching marks on the rear propeller shaft flange yoke and
the companion flange of the rear final drive as shown.
CAUTION:
For matching marks, use paint. Never damage the rear pro-
peller shaft flange yoke or the companion flange.
3. Remove the bolts, then remove the propeller shaft from the rear final drive and A/T.
INSPECTION AFTER REMOVAL
Inspect the propeller shaft run out. If run out exceeds the limit,
replace the propeller shaft assembly.
While holding the flange yoke on one side, check axial play of
the joint as shown. If the journal axial play exceeds the specifi-
cation, repair or replace as necessary.
Check the propeller shaft for bend and damage. If damage is
detected, replace the propeller shaft assembly.
INSTALLATION
Installation is in the reverse order of removal.
After installation, check for vibration by driving the vehicle. Refer to PR-3, "NVH Troubleshooting Chart" .
CAUTION:
Do not reuse the bolts and nuts. Always install new ones.
WDIA0049E
Propeller shaft run out limit : 1.02 mm (0.0402 in) or less
LDIA0121E
Journal axial play : 0.02 mm (0.0008 in) or less
LDIA0117E