2005 NISSAN X-TRAIL torque

REAR FINAL DRIVE ASSEMBLY
RFD-17
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Pre-InspectionEDS001ZC
TOTAL PRELOAD
1. Drain the oil.
2. Remove electric controlled coupling assembly. Refer to RFD-22, "
Removal of Electric Controlled Coupling
Assembly" .
3. Rotate the drive pinion back and forth in 2 to 3 times to check for unusual noise and rotation malfunction.
4. Rotate the drive pinion at least 20 times to check for smooth
operation of the bearing.
5. Fit the drive pinion socket onto the drive pinion spline. Using the
preload gauge below, measure the total preload.

If outside the standard, disassemble, check, and adjust each
part. Adjust the pinion bearing and side bearing preload.
Adjust the pinion bearing preload first, then adjust the side bearing preload.
Side bearing adjusting shims
*: Always check with the Parts Department for the latest parts information.
Tool number A: ST3127S000
B: KV38108500
Total preload
:1.33 - 2.15 N·m (0.14 - 0.21 kg-m, 12 - 19 in-lb)
Side bearing preload
: 0.64-0.98 N·m (0.07 - 0.09 kg-m, 6 - 8 in-lb)
When the preload torque is large
On pinion bearings : Replace the collapsible spacer.
On side bearings : Use thinner side bearing adjusting shims.
When the preload is small
On pinion bearings : Tighten the pinion nut.
On side bearings : Use thicker side bearing adjusting shims.
PDIA0048E
Thickness Part number* Thickness Part number*
1.85 mm (0.0728 in)
1.90 mm (0.0748 in)
1.95 mm (0.0768 in)
2.00 mm (0.0787 in)38453 4N200
38453 4N201
38453 4N202
38453 4N2032.05 mm (0.0807 in)
2.10 mm (0.0827 in)
2.15 mm (0.0854 in)
2.20 mm (0.0866 in)38453 4N204
38453 4N205
38453 4N206
38453 4N207

RFD-18
REAR FINAL DRIVE ASSEMBLY

DRIVE GEAR TO DRIVE PINION BACKLASH
1. Drain the oil.
2. Remove the rear cover. Refer to RFD-22, "
Removal of Differential Assembly" .
3. Following the procedure below, install a dummy cover set to the
carrier case.
a. Fit dummy cover shims to the right and left side bearing adjust-
ing shims.
b. Temporarily tighten a dummy cover to the carrier case.
c. Position a dummy cover spacer to the dummy cover.
d. Tighten rear cover mounting bolts to the specified torque. Refer to RFD-16, "
Components" .
e. Tighten dummy cover spacer mounting bolts evenly to the specified torque.
4. Fit a dial indicator to the drive gear face to measure the back-
lash.

If outside the standard, change the thickness of the side bearing
adjusting shims.
Side bearing adjusting shims
*: Always check with the Parts Department for the latest parts information.
Tool Number : KV389L0010
PDIA0474E
: 5.9 N·m (0.6 kg-m, 52 in-lb)
Backlash : 0.10 - 0.15 mm (0.0039 - 0.0059 in)
Tool number : KV389L0010
PDIA0049E
When the backlash is large:
Make the drive gear back adjusting shims thicker, and the drive gear front adjusting
shims thinner.
When the backlash is small:
Make the drive gear back adjusting shims thinner, and the drive gear front adjusting
shims thicker.
Thickness Part number* Thickness Part number*
1.85 mm (0.0728 in)
1.90 mm (0.0748 in)
1.95 mm (0.0768 in)
2.00 mm (0.0787 in)38453 4N200
38453 4N201
38453 4N202
38453 4N2032.05 mm (0.0807 in)
2.10 mm (0.0827 in)
2.15 mm (0.0854 in)
2.20 mm (0.0866 in)38453 4N204
38453 4N205
38453 4N206
38453 4N207

RFD-26
REAR FINAL DRIVE ASSEMBLY

b. Assemble a pinion front bearing inner race to the drive pinion.
Using the drift and suitable stand, press the pinion nut as far as
it can be tightened.
c. Temporarily tighten the removed pinion nut to the drive pinion.
NOTE:
Use the removed pinion nut only for the preload measurement.
d. Fit the drive pinion gear socket onto the drive pinion spline.
Using the pinion nut wrench, tighten the pinion nut to the speci-
fied preload torque.
CAUTION:
The pinion nut is tightened with no collapsible spacer. Be
careful not to overtighten it. While measuring the preload,
tighten it by 5° to 10°.
e. Apply differential oil to the side bearings, and install new side
bearing adjusting shims with the same thickness or re-install the
old ones to the same mounting position they were in prior to dis-
assembly. Install the differential case assembly to the carrier
case. Refer to RFD-28, "
Installation of Differential Assembly" .
f. Install a dummy cover set to check and adjust the tooth contact.
Refer to RFD-19, "
TOOTH CONTACT" .
g. Check and adjust the backlash. Refer to RFD-18, "
DRIVE
GEAR TO DRIVE PINION BACKLASH" .
h. Remove dummy cover set, and remove differential case assembly.
i. Remove pinion nut, pinion front bearing inner race, and remove
drive pinion gear.
5. Install the drive pinion gear with a collapsible spacer to the car-
rier case.Tool number : ST23860000
PDIA0899E
Tool number A: KV38108400
B: KV38108500
C: ST3127S000
PDIA0058E
SDIA0576E

REAR FINAL DRIVE ASSEMBLY
RFD-27
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6. Using the drift and suitable stand, press the pinion front bearing
inner race to the drive pinion as far as a pinion nut can be tight-
ened.
7. Apply anti-corrosive oil to the thread and seat of the pinion nut,
and temporarily tighten the pinion nut to the drive pinion.
CAUTION:
Do not reuse the pinion nut.
8. Fit the drive pinion gear socket onto the drive pinion gear spline.
Using the pinion nut wrench, adjust the pinion nut tightening
torque and pinion bearing preload torque.
CAUTION:

Do not reuse the pinion nut.

Adjust the lower limit of the pinion nut tightening torque
first.

If the preload torque exceeds the specified value, replace
the collapsible spacer and tighten it again to adjust. Never
loosen the pinion nut to adjust the preload torque.

After adjustment, rotate the drive pinion gear back and forth
2 to 3 times to check for abnormal noise, rotation malfunc-
tion, and other malfunctions.Tool number : ST23860000
PDIA0899E
Tool number A: KV38108400
B: KV38108500
C: ST3127S000
Pinion nut tightening torque
: 98 - 431 N·m (10 - 43 kg-m, 73 - 317 ft-lb)
Pinion bearing preload
: 0.69 - 1.17 N·m (0.07 - 0.11 kg-m, 7 - 10 in-lb)
PDIA0058E

RFD-28
REAR FINAL DRIVE ASSEMBLY

9. Install center oil seal as shown in the right figure.
10. Install the differential case assembly. Refer to RFD-28, "
Installa-
tion of Differential Assembly" .
CAUTION:
Do not install the rear cover.
11. Install the dummy cover set, and check backlash, drive gear
back runout, and tooth contact. Refer to RFD-19, "
TOOTH CON-
TA C T" .
12. Remove the dummy cover, then install the rear cover, and drive
in the oil seal. Refer to.RFD-28, "
Installation of Differential
Assembly" .
13. Check overall preload torque. Refer to RFD-17, "
TOTAL PRE-
LOAD" .
14. Connect electric controlled coupling assembly. Refer to RFD-30,
"Installation of Electric Controlled Coupling Assembly" .
15. Check companion flange runout. Refer to RFD-19, "
COMPAN-
ION FLANGE RUNOUT" .
Installation of Differential Assembly
1. Assemble new side gear thrust washers with the same thickness as the ones installed prior to disassem-
bly or reinstall the old ones on the side gears.
2. Assemble the side gears, side gear thrust washers, pinion mate gears, and pinion mate thrust washers to
the differential case, and temporarily assemble the pinion mate shaft.
3. Measure the side gear end play following the procedure below,
and select the appropriate side gear thrust washers.

Using a thickness gauge, measure the clearance between
side gear back and the differential case at 3 different points,
while rotating the side gear. Average the 3 readings, and
select the appropriate side gear thrust washer so that the
mean value is within specifications below. (Measure the clear-
ance of the other side as well.)
*: Always check with the Parts Department for the latest parts information.
CAUTION:

Before measurement, place differential case straight up
so that side gear to be measured comes upward. To pre-
vent the side gear from tilting, insert thickness gauges
with the same thickness from both sides.

Select a side gear thrust washer for right and left individually.
4. Assemble the selected side gear thrust washer to the differential case.Tool number : ST35271000
PDIA0464E
Side gear end play standard:
0.2 mm (0.008 in) or less. Every gear shall rotate
smoothly with no abnormal feeling of drag.
Thickness Part number* Thickness Part number*
0.74 mm (0.0291 in)
0.77 mm (0.0303 in)
0.80 mm (0.0315 in)38424 4N200
38424 4N201
38424 4N2020.83 mm (0.0327 in)
0.86 mm (0.0339 in)38424 4N203
38424 4N204
SDIA0583E

REAR FINAL DRIVE ASSEMBLY
RFD-29
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5. Using the pin punch, drive a lock pin into the pinion mating shaft.
CAUTION:
Do not reuse the lock pin.
6. Using the suitable drift, press a side bearing inner race into the
differential case.
CAUTION:
Do not reuse the side bearing inner race.
7. Apply locking sealant onto the thread of the drive gear.
CAUTION:
The drive gear back, threaded holes, and drive gear bolts shall be cleaned and decreased suffi-
ciently.
8. Assemble the drive gear to the differential case, and tighten it with drive gear bolt. Refer to RFD-16,
"Components" .
9. Apply differential oil to the side bearings, and assemble new side bearing adjusting shims (2 pieces for
one side) with the same thickness as the ones installed prior to disassembly or re-install the old ones, with
a side bearing outer race to the differential case.
If the side bearing adjusting shims have been already selected, use them.
CAUTION:
Do not reuse the side bearing outer race.
10. Fit the suitable drifts to the right and left side bearing adjusting
shims individually. Compress differential case assembly and
side bearing to install the carrier case assembly to differential
case assembly.
CAUTION:

The drift shall be placed on the center of the adjusting
shims.

The pressure shall be as low as possible to install the
carrier case assembly into the differential assembly. The
maximum pressure shall be 1 ton.

If the adjusting shims are installed by tapping, the carrier
case may be damaged. Avoid tapping.
11. Install a dummy cover set, check and adjust the backlash, drive gear back runout, tooth contact, and over-
all preload torque. Refer to RFD-17, "
Pre-Inspection" .
12. Remove dummy cover set.
PDIA0897E
PDIA0901E
PDIA0900E

RFD-30
REAR FINAL DRIVE ASSEMBLY

13. Apply a continuos bead of sealant around the carrier case mat-
ing surface on the rear cover as shown in the figure. Overlap
both ends of the bead for at least 3 mm (0.12 in).
CAUTION:
Remove old sealant on the mounting surface, then remove
any moisture, oil, and foreign material on the application
and mounting surfaces.
14. Fit the suitable drifts to the right and left side bearing adjusting
shims individually. Compress differential case assembly and
side bearing to install the rear cover.
CAUTION:

The drift shall be placed on the center of the adjusting
shims.

The pressure shall be as low as possible to install the
rear cover. The maximum pressure shall be 10 kN (1 ton,
1.1 US ton, 1.0 Imp ton)

If the rear cover is forced in by tapping, the rear cover
may be damaged by the adjusting shims. Avoid tapping.
15. Tighten rear cover mounting bolts to the specified torque. Refer to RFD-16, "
Components" .
16. Using both drift, drive the oil seal until it becomes flush with the
case end.
CAUTION:

Do not reuse oil seals.

Apply multi-purpose grease onto the oil seal lips, and dif-
ferential oil onto the circumference of the oil seal.
17. Check overall preload torque. Refer to RFD-17, "
TOTAL PRE-
LOAD" .
Installation of Electric Controlled Coupling Assembly
1. Using the drift below, install the coupling front bearing to the
electric controlled coupling.
CAUTION:
At disassembly, be sure to install shim between electric
controlled coupling and bearing. Chamfering side of shim
should be coupled to install.
2. Assemble the electric controlled coupling assembly to the drive pinion gear.
PDIA0240E
PDIA0896E
Tool number : KV38100200
PDIA0448E
Tool number : ST22360002
PDIA0060E

REAR FINAL DRIVE ASSEMBLY
RFD-31
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3. Using the drift below, drive an oil seal until it becomes flush with
the case end.
CAUTION:

Do not reuse oil seals.

Apply multi-purpose grease onto the oil seal lips, and dif-
ferential oil onto the circumference of the oil seal.
4. Apply a continuous bead sealant around the carrier case mating
surface on the coupling cover as shown in the figure. Overlap
both ends of the bead for at least 3 mm (0.12 in).
CAUTION:
Remove old sealant on the mounting surface, then remove
any moisture, oil, and foreign material from the application
and mounting surfaces.
5. Assemble the coupling cover to the carrier case assembly with
the arrow facing upward, temporarily tighten reamer bolts to the
positions shown in the figure.
6. Tighten the reamer bolts and coupling cover mounting bolts to
the specified torque.
7. Assemble the companion flange.
8. Using a flange wrench, tighten the companion flange nut to the
specified torque.
CAUTION:
Do not reuse the companion flange nut.
9. Check companion flange runout. Refer to RFD-19, "
COMPAN-
ION FLANGE RUNOUT" . Tool number A: KV38100200
B: ST27861000
PDIA0449E
PDIA0241E
SDIA0587E