2005 NISSAN X-TRAIL differential

AT-508
[ALL]
ASSEMBLY

Adjustment (1)ECS004ME
DIFFERENTIAL SIDE BEARING PRELOAD
1. Install differential side bearing outer race without differential side
bearing adjusting shim on transaxle case.
CAUTION:
Apply ATF to differential side bearing outer race.
2. Install differential side bearing outer race on converter housing.
CAUTION:
Apply ATF to differential side bearing outer race.
3. Place final drive assembly on transaxle case.
4. Install transaxle case on converter housing. Tighten transaxle
case fixing bolts to the specified torque. Refer to AT- 4 1 6 , "
Com-
ponents" .
5. Attach dial indicator on differential case at converter housing
side.
6. Insert Tool into differential side gear from transaxle case side.
7. Move SST up and down and measure dial indicator deflection.
8. Select proper thickness of differential side bearing adjusting
shim(s). Refer to AT- 5 3 6 , "
DIFFERENTIAL SIDE BEARING
PRELOAD ADJUSTING SHIMS" .
Suitable shim thickness = Dial indicator deflection + Speci-
fied bearing preload
SAT870D
ATM0024D
Bearing preload:
0.05 - 0.09 mm (0.0020 - 0.0035 in)
SAT186FA

ASSEMBLY
AT-509
[ALL]
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AT

9. Remove converter housing from transaxle case.
10. Remove final drive assembly from transaxle case.
11. Remove differential side bearing outer race from transaxle case.
12. Reinstall differential side bearing outer race and differential side
bearing adjusting shim selected from SDS table on transaxle
case. Refer to AT- 5 3 6 , "
DIFFERENTIAL SIDE BEARING PRE-
LOAD ADJUSTING SHIMS" .
13. Reinstall converter housing on transaxle case and tighten con-
verter housing mounting bolts to the specified torque. Refer to
AT- 4 1 6 , "
Components" .
14. Insert SST and measure turning torque of final drive assembly.

Turn final drive assembly in both directions several times
to seat bearing rollers correctly.

When old bearing is used again, turning torque will be
slightly less than the above.

Make sure torque is close to the specified range.
REDUCTION PINION GEAR BEARING PRELOAD
1. Remove converter housing and final drive assembly from tran-
saxle case.
2. Select proper thickness of reduction pinion gear adjusting shim
using the following procedures.
a. Place reduction pinion gear on transaxle case as shown.
b. Place idler gear bearing on transaxle case.
c. Measure the dimensions “B” “C” and “D” and calculate dimen-
sion “A”.
SAT010FC
Turning torque of final drive assembly (New bearing):
0.78 - 1.37 N-m (0.8 - 14.0 kg-cm, 6.9 - 12.2 in-lb)
Preload adapter: KV38105210
SAT188FA
SAT332DA
A = D − (B + C)
“A”: Distance between the surface of idler gear bear-
ing inner race and the adjusting shim mating
surface of reduction pinion gear.
SAT333DA

ASSEMBLY
AT-525
[ALL]
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9. Apply compressed air to oil holes of transaxle case and check
operation of brake band.
10. Install final drive assembly on transaxle case.
11. Install differential lubricant tube on converter housing. Tighten
differential lubricant tube bolts to the specified torque. Refer to
AT- 4 1 6 , "
Components" .
12. Install O-ring on differential oil port of transaxle case.
CAUTION:

Do not reuse O-ring.

Apply ATF to O-ring.
13. Install converter housing on transaxle case.
CAUTION:
Apply locking sealant (Locktite #518) to mating surface of
converter housing.
SAT397D
SAT228F
SAT063K
SCIA3281E
SCIA4929E

SERVICE DATA AND SPECIFICATIONS (SDS)
AT-535
[ALL]
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*: Always check with the Parts Department for the latest parts information.
*: Always check with the Parts Department for the latest parts information.
CLUTCH AND BRAKE RETURN SPRINGS
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
BRAKE BAND
Final DriveECS00F1X
DIFFERENTIAL SIDE GEAR CLEARANCE
Drive plate thickness mm (in)Standard 1.8 (0.071)
Wear limit 1.6 (0.063)
Driven plate thickness mm (in) Standard 1.8 (0.071)
Clearance mm (in)Standard 1.7 - 2.1 (0.067 - 0.083)
Wear limit 3.3 (0.130)
Thickness of retaining platesThickness mm (in) Part number*
2.0 (0.079)
2.2 (0.087)
2.4 (0.094)
2.6 (0.102)
2.8 (0.110)
3.0 (0.118)
3.2 (0.126)
3.4 (0.134)31667-80X00
31667-80X01
31667-80X02
31667-80X03
31667-80X04
31667-80X05
31667-80X06
31667-80X07
Model code number85X64
Number of drive plates6
Number of driven plates6
Drive plate thickness mm (in)Standard 1.8 (0.071)
Wear limit 1.6 (0.063)
Driven plate thickness mm (in) Standard 1.8 (0.071)
Clearance mm (in)Standard 1.7 - 2.1 (0.067 - 0.083)
Wear limit 3.3 (0.130)
Thickness of retaining platesThickness mm (in) Part number*
2.0 (0.079)
2.2 (0.087)
2.4 (0.094)
2.6 (0.102)
2.8 (0.110)
3.0 (0.118)
3.2 (0.126)
3.4 (0.134)31667-80X00
31667-80X01
31667-80X02
31667-80X03
31667-80X04
31667-80X05
31667-80X06
31667-80X07
Parts Part number* Free length Outer diameter
Forward clutch (Overrun clutch)
(22 pcs)31505-80X02 21.4 (0.843) 10.3 (0.406)
High clutch (12 pcs) 31505-80X05 22.5 (0.886) 10.8 (0.425)
Low & reverse brake (24 pcs) 31505-80X07 24.1 (0.949) 6.6 (0.260)
Anchor end pin tightening torque N·m (kg-m, in-lb) 4.9 (0.50, 43)
Number of returning revolutions for anchor end pin 2.5
Lock nut tightening torque N·m (kg-m, ft-lb) 34 (3.5, 25)
Clearance between side gear and differential case with
washer mm (in)0.1 - 0.2 (0.004 - 0.008)

AT-536
[ALL]
SERVICE DATA AND SPECIFICATIONS (SDS)

DIFFERENTIAL SIDE GEAR THRUST WASHERS
*: Always check with the Parts Department for the latest parts information.
DIFFERENTIAL SIDE BEARING PRELOAD ADJUSTING SHIMS
*: Always check with the Parts Department for the latest parts information.
BEARING PRELOAD
TURNING TORQUE
Planetary Carrier and Oil PumpECS00F1Y
PLANETARY CARRIER
OIL PUMP
*: Always check with the Parts Department for the latest parts information.Thickness mm (in) Part number*
0.75 (0.0295)
0.80 (0.0315)
0.85 (0.0335)
0.90 (0.0354)
0.95 (0.0374)38424-81X00
38424-81X01
38424-81X02
38424-81X03
38424-81X04
Thickness mm (in) Part number*
0.48 (0.0189)
0.52 (0.0205)
0.56 (0.0220)
0.60 (0.0236)
0.64 (0.0252)
0.68 (0.0268)
0.72 (0.0283)
0.76 (0.0299)
0.80 (0.0315)
0.84 (0.0331)
0.88 (0.0346)
0.92 (0.0362)31438-80X00
31438-80X01
31438-80X02
31438-80X03
31438-80X04
31438-80X05
31438-80X06
31438-80X07
31438-80X08
31438-80X09
31438-80X10
31438-80X11
Differential side bearing preload mm (in) 0.05 - 0.09 (0.0020 - 0.0035)
Turning torque of final drive assembly N·m (kg-cm, in-lb) 0.78 - 1.37 (8.0 - 14.0, 6.9 - 12.2)
Clearance between planetary carrier
and pinion washer mm (in)Standard 0.20 - 0.70 (0.0079 - 0.0276)
Allowable limit 0.80 (0.0315)
Oil pump side clearance mm (in) 0.030 - 0.050 (0.0012 - 0.0020)
Thickness of inner gears and outer gearsInner gear
Thickness mm (in) Part number*
11.99 - 12.0 (0.4720 - 0.4724)
11.98 - 11.99 (0.4717 - 0.4720)
11.97 - 11.98 (0.4713 - 0.4717)31346-80X00
31346-80X01
31346-80X02
Outer gear
Thickness mm (in) Part number*
11.99 - 12.0 (0.4720 - 0.4724)
11.98 - 11.99 (0.4717 - 0.4720)
11.97 - 11.98 (0.4713 - 0.4717)31347-80X00
31347-80X01
31347-80X02
Clearance between oil pump
housing and outer gear mm
(in)Standard 0.111 - 0.181 (0.0044 - 0.0071)
Allowable limit 0.181 (0.0071)
Oil pump cover seal ring
clearance mm (in)Standard 0.1 - 0.25 (0.0039 - 0.0098)
Allowable limit 0.25 (0.0098)

PR-2
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartEDS0027A
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
—
PR-6—
—
—
PR-3—
NVH in RFD section
NVH in FAX, RAX, FSU, and RSU section
NVH in WT section
NVH in WT section
NVH in FAX and RAX section
NVH in BR section
NVH in PS section
Possible cause and SUSPECTED PARTS
Uneven rotating torque
Center bearing improper installation
Excessive center bearing axial end play
Center bearing mounting (insulator) cracks, damage or deterioration
Excessive joint angle
Rotation imbalance
Excessive runout
DIFFERENTIAL
AXLE AND SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
SymptomNoise××××××××××××××
Shake× × ××××××
Vibration××××××× ×× × ×

RFD-1
REAR FINAL DRIVE
D DRIVELINE/AXLE
CONTENTS
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SECTION RFD
A
B
RFD

REAR FINAL DRIVE
PRECAUTIONS .......................................................... 2
Service Notice or Precautions .................................. 2
PREPARATION ........................................................... 3
Special Service Tools ............................................... 3
Commercial Service Tools ........................................ 4
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 6
NVH Troubleshooting Chart ..................................... 6
REAR FINAL DRIVE SYSTEM ................................... 7
Sectional View .......................................................... 7
DIFFERENTIAL GEAR OIL ........................................ 8
Changing Differential Gear Oil ................................. 8
DRAINING ............................................................. 8
FILLING ................................................................. 8
Checking Differential Gear Oil .................................. 8
OIL LEAKAGE AND OIL LEVEL ........................... 8
FRONT OIL SEAL ...................................................... 9
Removal and Installation .......................................... 9
REMOVAL ............................................................. 9
INSTALLATION ..................................................... 9
SIDE OIL SEAL .........................................................11
Removal and Installation ......................................... 11
REMOVAL ............................................................ 11
INSTALLATION .................................................... 11
ELECTRIC CONTROLLED COUPLING .................. 12
Removal and Installation ........................................ 12
REMOVAL ........................................................... 12
INSTALLATION ................................................... 13REAR FINAL DRIVE ASSEMBLY ............................ 14
Removal and Installation ........................................ 14
REMOVAL ........................................................... 14
INSTALLATION ................................................... 15
Components ........................................................... 16
Pre-Inspection ........................................................ 17
TOTAL PRELOAD ............................................... 17
DRIVE GEAR TO DRIVE PINION BACKLASH ... 18
DRIVE GEAR RUNOUT ...................................... 19
COMPANION FLANGE RUNOUT ....................... 19
TOOTH CONTACT .............................................. 19
Disassembly and Assembly .................................... 22
DISASSEMBLY ................................................... 22
ASSEMBLY ......................................................... 25
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 32
General Specification ............................................. 32
Drive Gear Vibration ............................................... 32
Total Preload ........................................................... 32
Side Gear Clearance Adjustment ........................... 32
Drive Pinion Gear Preload Adjustment ................... 32
Side Bearing Preload Adjustment ........................... 32
THRUST WASHER FOR ADJUSTMENT OF SIDE
GEAR BACK CLEARANCE .................................... 32
DRIVE PINION GEAR PRELOAD ADJUSTING
SHIM ....................................................................... 32
ADJUSTING SHIM FOR SIDE BEARING PRE-
LOAD ...................................................................... 33

RFD-2
PRECAUTIONS

PRECAUTIONSPFP:00001
Service Notice or PrecautionsEDS001YY

Check for the correct installation status prior to removal or disassembly. If matching marks are required,
be certain they do not interfere with the function of the parts when applied.

Overhaul should be done in a clean work area, it is preferable to work in dustproof area.

Before disassembly, using steam or white gasoline, completely remove sand and mud from the exterior of
the unit, preventing them from entering into the unit during disassembly or assembly.

Check appearance of the disassembled parts for damage, deformation, and unusual wear. Replace them
with a new ones if necessary.

Gaskets, seals and O-rings should be replaced any time when the unit is disassembled.

In principle, tighten bolts or nuts gradually in several steps working diagonally from inside to outside. If
tightening sequence is specified, observe it.

Clean and flush the parts sufficiently and blow-dry them.

Be careful not to damage sliding surfaces and mating surfaces.

When applying sealant, remove the old sealant from the mounting surface; then remove any moisture, oil,
and foreign materials from the application and mounting surfaces.

Always use shop paper for cleaning the inside of components.

Avoid using cotton gloves or shop rags to prevent entering of lint.

During assembly, observe the specified tightening torque, and apply new differential oil, petroleum jelly, or
multi-purpose grease as specified for each vehicle, if necessary.