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Nissan Pathfinder (2010 year). Manual - part 237

REAR FINAL DRIVE

DLN-469

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R230]

DLN

• Keep side bearing outer races together with inner race.

Do not mix them up.

• Keep side bearing adjusting washers together with side

bearings.

8. Remove the side bearing inner races using Tools.

CAUTION:

• Engage Tool jaws in bearing groove to prevent damage.

• Place copper plates between the side bearing and drive

gear and the vise to prevent damage.

• Do not remove side bearing inner race unless it is being

replaced.

9. For proper reinstallation, paint matching marks on the differential

case and drive gear.

CAUTION:

Use paint for matching marks. Do not damage differential

case or drive gear.

10. Remove the drive gear bolts.
11. Tap the drive gear off the differential case using suitable tool.

CAUTION:

Tap evenly all around to keep drive gear from bending.

12. Remove the lock pin of the pinion mate shaft from the drive gear

side using suitable tool.

SPD919

Tool number

A: ST3306S001 ( — )
B: ST33061000 (J-8107-2)

SPD920

PDIA0496E

WDIA0132E

2010 Pathfinder

DLN-470

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R230]

REAR FINAL DRIVE

13. Remove the pinion mate shaft.

14. Turn the pinion mate gear, then remove the pinion mate gear,

pinion mate thrust washer, side gear and side gear thrust

washer from the differential case.

Drive Pinion Assembly

1. Remove the differential assembly. Refer to

DLN-460, "Removal and Installation"

2. Remove the drive pinion lock nut using suitable tool.
3. Put matching marks on the companion flange and drive pinion

using paint.

CAUTION:

Use paint to make the matching marks. Do not damage the

companion flange or drive pinion.

4. Remove the companion flange using suitable tool.

SDIA0031J

SDIA0032J

SDIA1144E

SDIA1132E

2010 Pathfinder

REAR FINAL DRIVE

DLN-471

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R230]

DLN

5. Press the drive pinion assembly (with rear inner bearing race

and collapsible spacer) out of the gear carrier.

CAUTION:

Do not drop drive pinion assembly.

6. Remove the front oil seal.

CAUTION:

Do not damage gear carrier.

7. Remove the drive pinion front bearing inner race.

8. Remove the drive pinion rear bearing inner race and drive pinion

height adjusting washer using Tool.

9. Remove the drive pinion front and rear bearing outer races by

tapping them uniformly using suitable tool.

CAUTION:

Do not damage gear carrier.

INSPECTION AFTER DISASSEMBLY

Clean the disassembled parts. Then inspect the parts for wear or damage. If wear or damage are found, follow

the measures below.

Drive Pinion and Drive Gear

• If the drive pinion and drive gear teeth do not mesh or line-up correctly, determine the cause and adjust,

repair, or replace as necessary.

• If the drive pinion or drive gear are worn, cracked, damaged, pitted or chipped (by friction) noticeably,

replace with new drive pinion and drive gear.

• Drive pinion and drive gear are supplied in matched sets only. Matching numbers on both drive pinion and

drive gear are etched for verification. If a new drive pinion and drive gear set are being used, verify the num-

bers of each drive pinion and drive gear before proceeding with assembly.

Bearing

• If bearings are chipped (by friction), pitted, worn, rusted, scratched, or unusual noise is coming from bearing,

replace with new bearing assembly (as a new set).

• Bearing must be replaced with a new one whenever disassembled.

Side Gear and Pinion Mate Gear

• If any cracks or damage are found on the surface of the teeth, replace with new one.

• If any worn or chipped marks are found on the side of the side gear and pinion mate gear which contact the

thrust washer, replace with new one.

• Replace both side gear and pinion mate gear as a set when replacing side gear or pinion mate gear.

Side Gear Thrust Washer and Pinion Mate Thrust Washer

• If any chips (by friction), damage, or unusual wear are found, replace with new one.

SPD892

Tool number:

: ST30031000 (J-22912-01)

S-PD179

SDIA0817E

2010 Pathfinder

DLN-472

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R230]

REAR FINAL DRIVE

Gear Carrier

• If any wear or cracks are found on the contact sides of gear carrier, replace with new one.

Companion Flange

• If any chips (about 0.1mm, 0.004 in) or other damage on the companion flange surface which contacts the

front oil seal lips are found, replace with new one.

ADJUSTING AND SELECTING WASHERS

Side Gear Back Clearance

• Assemble the differential parts if they are disassembled.
1. Place the differential case straight up so that the side gear to be

measured is upward.

2. Using feeler gauges, measure the clearance between the side

gear back and differential case at three different points, while

rotating the side gear. Average the three readings to calculate

the clearance. (Measure the clearance of the other side as well.)

• If the side gear back clearance is outside of the specification,

use a thicker or thinner side gear thrust washer to adjust.

Refer to

DLN-480, "Inspection and Adjustment"

CAUTION:

• Insert feeler gauges with the same thickness on both

sides to prevent side gear from tilting.

• Each gear should rotate smoothly without excessive

resistance during differential motion.

• Select a side gear thrust washer for right and left individually.

NOTE:

Side gear back clearance is clearance between side gear and differential case for adjusting side gear

backlash.

Side Bearing Preload Torque

• A selection of side bearing adjusting washers is required for successful completion of this procedure.

PDIA0460E

Side gear back clearance: Refer to

DLN-480, "Inspec-

tion and Adjustment"

If the side gear back clearance is greater than
specification:

Use a thicker side gear thrust washer.

If the side gear back clearance is less than spec-
ification:

Use a thinner side gear thrust washer.

PDIA0576E

2010 Pathfinder

REAR FINAL DRIVE

DLN-473

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R230]

DLN

1. Apply differential gear oil to the side bearings, and install the dif-

ferential case assembly with the side bearing outer races into

the gear carrier.

CAUTION:

Do not reuse side bearing outer race when replacing side

bearing inner race (replace as a set).

2. Insert the left and right original side bearing adjusting washers in

place between side bearings and gear carrier.

3. Align the matching mark on the side bearing cap with the match-

ing mark on the gear carrier.

4. Install the side bearing caps and tighten the side bearing cap

bolts to the specified torque. Refer to

DLN-463, "Exploded

View"

5. Turn the differential assembly several times to seat the side

bearings.

6. To determine side bearing preload torque, measure the pulling

force of the differential assembly at the drive gear bolt using

Tool.

NOTE:

If pulling force of the differential assembly at the drive gear bolt

is within specification, side bearing preload torque will also be

within specification. Refer to

DLN-480, "Inspection and Adjustment"

SPD527

SPD924

SDIA1795E

Tool number

—

(J-8129)

Specification

Refer to

DLN-480, "Inspection and Ad-

justment"

SPD194A

2010 Pathfinder

DLN-474

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R230]

REAR FINAL DRIVE

7. If the pulling force is outside the specification, use a thicker or

thinner side bearing adjusting washer to adjust. Refer to

DLN-

480, "Inspection and Adjustment"

CAUTION:

Select a side bearing adjusting washer for right and left

individually.

8. Record the total amount of washer thickness required for the correct side bearing preload torque.

ASSEMBLY

Drive Pinion Assembly

1. Install the drive pinion front and rear bearing outer races using

Tools.

CAUTION:

Do not reuse drive pinion front and rear bearing outer race.

2. Select a drive pinion height adjusting washer. Refer to

DLN-480, "Inspection and Adjustment"

3. Install the selected drive pinion height adjusting washer to the

drive pinion. Press the drive pinion rear bearing inner race to it

using Tool.

CAUTION:

• Install the drive pinion height adjusting washer in the

proper direction as shown.

• Do not reuse drive pinion rear bearing inner race.

If the pulling force is less than the specification:

Use a thicker side bearing adjusting washer.

If the pulling force is greater than the specification:

Use a thinner side bearing adjusting washer.

SPD772

Tool number

A: ST15310000 ( — )
B: ST35325000 ( — )
C: ST30621000 (J-25742-5)

SPD992

Tool number

: ST30022000 ( — )

SPD377

2010 Pathfinder

REAR FINAL DRIVE

DLN-475

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R230]

DLN

4. Assemble the collapsible spacer to the drive pinion.

CAUTION:

Do not reuse collapsible spacer.

5. Apply differential gear oil to the drive pinion rear bearing, and

install the drive pinion assembly to the gear carrier.

6. Apply differential gear oil to the drive pinion front bearing, and

install the drive pinion front bearing inner race to the drive pinion

assembly.

CAUTION:

Do not reuse drive pinion front bearing inner race.

7. Press the drive pinion front bearing inner race to the drive pinion

as far as drive pinion lock nut can be tightened using suitable

spacer.

8. Apply multi-purpose grease to the lips of the new front oil seal.

Then drive the new front oil seal in evenly until it becomes flush

with the gear carrier using Tool.

CAUTION:

• Do not reuse front oil seal.

• Do not incline the new front oil seal when installing.

• Apply multi-purpose grease to the lips of the new front oil

seal.

9. Install the companion flange to the drive pinion while aligning the matching marks.

PDIA0492E

SPD896

Tool number

: ST15310000 ( — )

PDIA0563E

2010 Pathfinder

DLN-476

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R230]

REAR FINAL DRIVE

10. Apply anti-corrosive oil to the threads of the drive pinion and the

seating surface of the new drive pinion lock nut. Then adjust the

drive pinion lock nut tightening torque using suitable tool A, and

check the drive pinion bearing preload torque using Tool B.

CAUTION:

• Do not reuse drive pinion lock nut.

• Apply anti-corrosive oil to the threads of the drive pinion

and the seating surface of the new drive pinion lock nut.

• Adjust the drive pinion lock nut tightening torque to the

lower limit first. Do not exceed the drive pinion lock nut

specified torque. Refer to

DLN-463, "Exploded View"

• If the drive pinion bearing preload torque exceeds the

specified value, replace collapsible spacer and tighten it

again to adjust. Do not loosen drive pinion lock nut to

adjust the drive pinion bearing preload torque.

• After adjustment, rotate drive pinion back and forth 2 to 3

times to check for unusual noise, rotation malfunction,

and other malfunctions.

11. Check companion flange runout. Refer to

DLN-480, "Inspection and Adjustment"

12. Install the differential case assembly. Refer to

DLN-463, "Exploded View"

Differential Assembly

1. Install side gear thrust washers with the same thickness as the

ones installed prior to disassembly, or reinstall the old ones on

the side gears.

2. Install the side gears and side gear thrust washers into the dif-

ferential case.

CAUTION:

Make sure that the circular clip is installed to side gears.

3. Install the pinion mate thrust washers to the two pinion mate

gears. Then install the pinion mate gears with the pinion mate

thrust washers by aligning them in diagonally opposite positions

and rotating them into the differential case.

Tool number

B: ST3127S000 (J-25765-A)

Drive pinion bearing
preload torque:

Refer to

DLN-480, "Inspection

and Adjustment"

WDIA0379E

SDIA0193J

SDIA2025E

2010 Pathfinder

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