Nissan X-Trail 32. Manual - part 710

DIFFERENTIAL ASSEMBLY

DLN-251

< UNIT DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

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10. Tighten the bolts in a crisscross fashion to the specified torque.

• For tightening torque, refer to 

DLN-246, "Exploded View"

.

CAUTION:

Apply anti-corrosion oil to the thread and seat of mounting
bolts.

11. Assemble side bearing outer races to inner races.

CAUTION:

• Never reuse side bearing outer race.
• Apply gear oil to side bearing.

12. Install new side bearing adjusting shims (2 pieces for one side)

with the same thickness as the ones installed prior to disassem-
bly or re-install the old ones, on side bearing outer race of differ-
ential assembly.
If side bearing adjusting shims have been already selected, use them.

13. Set the drifts (A and B) to the right and left side bearing adjusting

shims individually. Compress differential assembly and side
bearing to gear carrier assembly to install differential assembly.

CAUTION:

• The drift shall be placed on the center of the adjusting

shims.

• The pressure shall be as low as possible to install differ-

ential assembly into gear carrier assembly. The maximum
pressure shall be 10 kN (1 ton, 1.1 US ton, 1.0 Imp ton).

• If the adjusting shims are installed by tapping, the gear carrier may be damaged. Avoid tapping.

14. Install dummy cover set, check and adjust drive gear runout, tooth contact, backlash, and total preload

torque. Refer to 

DLN-252, "Adjustment"

.

15. Remove dummy cover set.

16. Install stud bolt to rear cover.

CAUTION:

Screw the stud bolt until the thread becomes invisible by applying a torque of 20 N·m (2.0 kg-m, 15
ft-lb) or less.

17. Apply liquid gasket to mating surface of rear cover.

• For applying liquid gasket, refer to 

DLN-246, "Exploded View"

.

CAUTION:

• Remove old gasket adhering to the mounting surfaces.

Also remove any moisture, oil, or foreign material adher-
ing to the mounting surfaces.

• The width of sealant bead is approximately 3 mm (0.12 in).

Apply sealant evenly.

18. Set the drifts (A and B) to the right and left side bearing adjusting

shims individually. Compress differential assembly and side
bearing to install rear cover.

CAUTION:

• The drift shall be placed on the center of the adjusting

shims.

A

: Drift (SST: KV40100610)

B

: Drift (SST: KV40100610)

PDIA0466E

JSDIA5289ZZ

JSDIA5290ZZ

A

: Drift (SST: KV40100610)

B

: Drift (SST: KV40100610)

JSDIA5286ZZ

DLN-252

< UNIT DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

DIFFERENTIAL ASSEMBLY

• The pressure shall be as low as possible to install differential assembly into gear carrier assem-

bly. The maximum pressure shall be 10 kN (1 ton, 1.1 US ton, 1.0 Imp ton).

• If the adjusting shims are installed by tapping, the gear carrier may be damaged. Avoid tapping.

19. Tighten rear cover mounting bolts to the specified torque.

• For tightening torque, refer to 

DLN-246, "Exploded View"

.

20. Using the drift (A) (SST: KV38100200), drive side oil seals until it

becomes flush with the gear carrier end.

CAUTION:

• Never reuse oil seal.
• When installing, never incline oil seal.
• Apply multi-purpose grease onto oil seal lips, and gear oil

onto the circumference of oil seal.

21. Check total preload torque. Refer to 

DLN-252, "Adjustment"

.

Adjustment

INFOID:0000000011008629

TOTAL PRELOAD TORQUE

1.

Remove electric controlled coupling assembly. Refer to 

DLN-243, "Disassembly and Assembly"

.

2.

Rotate drive pinion back and forth 2 to 3 times to check for unusual noise and rotation malfunction.

3.

Rotate drive pinion at least 20 times to check for smooth opera-
tion of the bearing.

4.

Fit drive pinion socket onto drive pinion spline. Measure the total
preload, using the preload gauge and drive pinion socket.

NOTE:
Total preload torque = Pinion bearing torque + Side bearing torque

• If measured value is out of the specification, disassemble it to check and adjust each part. Adjust the pinion

bearing preload and side bearing preload.
Adjust the pinion bearing preload first, then adjust the side bearing preload.

DRIVE GEAR RUNOUT

1.

Remove rear cover. Refer to 

DLN-247, "Disassembly and Assembly"

.

2.

Following the procedure below, install the dummy cover set (SST: KV389L0010) to gear carrier.

a.

Set dummy cover shims to the right and left side bearing adjusting shims.

b.

Temporarily tighten dummy cover to gear carrier.

JSDIA5291ZZ

A

: Drive pinion socket (SST: KV38109500)

B

: Preload gauge (SST: ST3127S000)

Standard

Total preload torque

: Refer to 

DLN-263, "Pre-

load Torque"

.

When the preload torque is large

On pinion bearings:

Replace the collapsible spacer.

On side bearings:

Use thinner side bearing adjusting shims. For selecting adjusting 
shim, refer to the latest parts information.

When the preload is small

On pinion bearings:

Tighten the drive pinion nut.

On side bearings:

Use thicker side bearing adjusting shims. For selecting adjusting 
shim, refer to the latest parts information.

JSDIA5303ZZ

DIFFERENTIAL ASSEMBLY

DLN-253

< UNIT DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

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c.

Position dummy cover spacers to dummy cover.

d.

Tighten rear cover mounting bolts to the specified torque. Refer to 

DLN-246, "Exploded View"

.

e.

Tighten dummy cover spacer mounting bolts evenly to the specified torque.

3.

Fit a dial indicator (A) to the drive gear back face.

4.

Rotate the drive gear to measure runout.

• If the runout is outside of the repair limit, check drive gear

assembly condition; foreign material may be caught between
drive gear and differential case, or differential case or drive
gear may be deformed, etc.

CAUTION:

Replace drive gear and drive pinion as a set.

TOOTH CONTACT

1.

Remove rear cover. Refer to 

DLN-247, "Disassembly and Assembly"

.

2.

Following the procedure below, install the dummy cover set (SST: KV389L0010) to gear carrier.

a.

Set dummy cover shims to the right and left side bearing adjusting shims.

b.

Temporarily tighten dummy cover to gear carrier.

c.

Position dummy cover spacers to dummy cover.

d.

Tighten rear cover mounting bolts to the specified torque. Refer to 

DLN-246, "Exploded View"

.

e.

Tighten dummy cover spacer mounting bolts evenly to the specified torque.

3.

Apply red lead or equivalent to drive gear.

CAUTION:

Apply red lead or equivalent to both the faces of 3 to 4
gears at 4 locations evenly spaced on drive gear.

4.

Rotate drive gear back and forth several times, check drive pin-
ion gear to drive gear tooth contact.

CAUTION:

Check tooth contact on drive side and reverse side.

: 5.9 N·m (0.6 kg-m, 52 in-lb)

B

: Dummy cover set (SST: KV389L0010)

Limit

Drive gear back face 
runout

: Refer to 

DLN-263, "Drive 

Gear Runout"

.

JSDIA5304ZZ

: 5.9 N·m (0.6 kg-m, 52 in-lb)

A

: Dummy cover set (SST: KV389L0010)

JSDIA5305ZZ

SDIA0570E

DLN-254

< UNIT DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145]

DIFFERENTIAL ASSEMBLY

Tooth Contact Judgment Guide

5.

If tooth contact is improperly adjusted, follow the procedure
below to adjust the pinion height (dimension X).

• If the tooth contact is near the face (face contact), or near the

heel (heel contact), thicken drive pinion gear adjusting shim to
move drive pinion closer to drive gear.
For selecting adjusting shim, refer to the latest parts informa-
tion.

SDIA2549E

SDIA0517E

PDIA0440E