Nissan Pathfinder (2009 year). Manual - part 244

DLN-434

< PRECAUTION >

[REAR FINAL DRIVE: R230 (4WD)]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precaution for Servicing Rear Final Drive

INFOID:0000000003937465

• Before starting diagnosis of the vehicle, understand the symptoms well. Perform correct and systematic

operations. 

• Check for the correct installation status prior to removal or disassembly. When matching marks are required,

be certain they do not interfere with the function of the parts they are applied to. 

• Overhaul should be done in a clean work area, a dust proof area is recommended.
• Before disassembly, completely remove sand and mud from the exterior of the unit, preventing them from

entering into the unit during disassembly or assembly.

• Always use shop paper for cleaning the inside of components.
• Avoid using cotton gloves or a shop cloth to prevent the entering of lint.
• Check appearance of the disassembled parts for damage, deformation, and abnormal wear. Replace them

with new ones if necessary. 

• Gaskets, seals and O-rings should be replaced any time the unit is disassembled.
• Clean and flush the parts sufficiently and blow them dry.
• Be careful not to damage sliding surfaces and mating surfaces.
• When applying sealant, remove the old sealant from the mating surface; then remove any moisture, oil, and

foreign materials from the application and mating surfaces.

• In principle, tighten nuts or bolts gradually in several steps working diagonally from inside to outside. If a

tightening sequence is specified, observe it.

• During assembly, observe the specified tightening torque.
• Add new differential gear oil, petroleum jelly, or multi-purpose grease, as specified.

2009 Pathfinder

PREPARATION

DLN-435

< PREPARATION >

[REAR FINAL DRIVE: R230 (4WD)]

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PREPARATION

PREPARATION

Special Service Tool

INFOID:0000000003937466

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Tool number
(Kent-Moore No.)
Tool name

Description

KV40104000
(

—

)

Flange wrench

Removing and installing drive pinion lock nut
a: 85 mm (3.35 in) dia.
b: 65 mm (2.56 in) dia.

KV381054S0
(J-34286)
Puller

Removing front oil seal 

ST15310000
(J-25640-B)
Drift

Installing oil seal
a: 84 mm (3.31 in) dia.
b: 96 mm (3.78 in) dia.
c: 8 mm (0.31 in) dia.
d: 20 mm (0.79 in)

ST36230000
(J-25840-A)
Sliding hammer 

Removing side flange

KV40104100
(

—

)

Attachment

Removing side flange

KV38100200
(J-26233)
Drift

Installing side oil seal
a: 65 mm (2.56 in) dia.
b: 49 mm (1.93 in) dia.

NT659

ZZA0601D

NT607

ZZA0803D

ZZA0804D

ZZA1143D

2009 Pathfinder

DLN-436

< PREPARATION >

[REAR FINAL DRIVE: R230 (4WD)]

PREPARATION

KV38107900
(J-39352)
Protector

Installing side flange

ST35325000
(

—

)

Drift bar

Installing drive pinion outer race

ST30621000
(J-25742-5)
Drift

Installing drive pinion outer race
a: 79 mm (3.11 in) dia.
b: 59 mm (2.32 in) dia.

SR33081000
(

—

)

Adapter

Installing side bearing race
a: 43 mm (1.69 in) dia.
b: 33.5 mm (1.319 in) dia.

ST30022000
(

—

)

Inserter

Installing drive pinion inner race
a: 110 mm (4.33 in) dia.
b: 46 mm (1.81 in) dia.

KV38100800
(J-25604-01)
Attachment

Securing unit assembly
a: 541 mm (21.30 in)
b: 200 mm (7.87 in)

Tool number
(Kent-Moore No.)
Tool name

Description

S-NT129

ZZA1140D

NT073

NT431

ZZA0920D

SDIA0267E

2009 Pathfinder

PREPARATION

DLN-437

< PREPARATION >

[REAR FINAL DRIVE: R230 (4WD)]

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ST3127S000
(J-25765-A)
Preload gauge
1: GG91030000

(J-25765)
Torque wrench

2: HT62940000

(

—

)

Socket adapter (1/2

″

)

3: HT62900000

(

—

)

Socket adapter (3/8

″

)

Measuring drive pinion bearing preload torque 
and total preload torque

KV10111100
(J-37228)
Seal cutter

Removing carrier cover

ST3306S001
(

—

)

Differential side bearing puller set
1: ST33051001

(J-22888-20)
Puller

2: ST33061000

(J-8107-2)
Base

Removing and installing side bearing inner 
race
a: 28.5 mm (1.122 in) dia.
b: 38 mm (1.50 in) dia.

ST30031000
(J-22912-01)
Puller

Removing drive pinion rear bearing inner race

ST35271000
(

—

)

Drift

Installing oil seal
a: 72 mm (2.83 in) dia.
b: 63 mm (2.48 in) dia.

HT72400000
(

—

)

Slide hammer

Removing differential case assembly

Tool number
(Kent-Moore No.)
Tool name

Description

NT124

S-NT046

NT072

ZZA0700D

ZZA0837D

S-NT125

2009 Pathfinder

DLN-438

< PREPARATION >

[REAR FINAL DRIVE: R230 (4WD)]

PREPARATION

Commercial Service Tool

INFOID:0000000003937467

—

(J-8129)
Spring gauge

Measuring turning torque

KV10112100
(BT-8653-A)
Angle wrench

Tightening bolts for drive gear

Tool number
(Kent-Moore No.)
Tool name

Description

NT127

NT014

Tool name

Description

Spacer

Installing drive pinion front bearing inner race
a: 60 mm (2.36 in) dia.
b: 36 mm (1.42 in) dia.
c: 30 mm (1.18 in)

Power tool

Loosening nuts and bolts

ZZA1133D

PBIC0190E

2009 Pathfinder

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

DLN-439

< FUNCTION DIAGNOSIS >

[REAR FINAL DRIVE: R230 (4WD)]

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FUNCTION DIAGNOSIS

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

INFOID:0000000003937468

Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.

×

: Applicable

Reference page

DLN-450

DLN-450

DLN-450

DLN-450

DLN-467

M

A

-12

, "F

lui

d

s

 a

nd 

Lu

bric

a

n

ts

"

DL

N-3

1

5

, 

"NV

H

 T

rou

ble

s

hoo

ti

ng Cha

rt"

DL

N-3

2

4

, 

"NV

H

 T

rou

ble

s

hoo

ti

ng Cha

rt"

RAX-4,

 "NVH T

ro

u

b

les

ho

ot

ing

 Ch

art"

RSU-5, 

"NVH T

ro

ubl

es

ho

ot

ing

 Cha

rt"

WT

-4

5,

 "NVH T

ro

u

b

les

ho

ot

ing

 Ch

art"

WT

-4

5,

 "NVH T

ro

u

b

les

ho

ot

ing

 Ch

art"

RAX-4,

 "NVH T

ro

u

b

les

ho

ot

ing

 Ch

art"

BR-6, 

"NVH T

ro

u

b

les

ho

ot

ing

 Ch

art"

ST

-9,

 "NVH T

rou

bl

es

ho

ot

in

g

 Cha

rt"

Possible cause and SUSPECTED PARTS

Ge

ar t

o

o

th 

rou

g

h

Gea

r co

nt

ac

t i

m

p

rop

er

T

o

ot

h s

u

rf

ac

es

 w

o

rn

Ba

ck

la

sh

 in

co

rrec

t

Co

mp

an

io

n f

lan

ge

 e

x

c

e

s

s

iv

e

 run

o

u

t

Gea

r oi

l i

m

p

rop

er

PR

OP

EL

LE

R

 S

H

A

F

T

REA

R

 AXLE

REA

R

 SUSPENSI

ON

TI

RE

S

ROAD W

H

EEL

DRIV

E

 SHAFT

BR

AK

E

S

S

T

EERING

Symptom

Noise

×

×

×

×

×

×

×

×

×

×

×

×

×

2009 Pathfinder

DLN-440

< FUNCTION DIAGNOSIS >

[REAR FINAL DRIVE: R230 (4WD)]

DESCRIPTION

DESCRIPTION

Cross-Sectional View

INFOID:0000000003937469

1.

Side flange

2.

Pinion mate gear

3.

Drive gear

4.

Pinion mate shaft

5.

Differential case

6.

Side bearing

7.

Drive pinion

8.

Drive pinion front bearing

9.

Companion flange

10. Collapsible spacer

11.

Drive pinion rear bearing

12. Side gear

WDIA0119E

2009 Pathfinder

DIFFERENTIAL GEAR OIL

DLN-441

< ON-VEHICLE MAINTENANCE >

[REAR FINAL DRIVE: R230 (4WD)]

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ON-VEHICLE MAINTENANCE

DIFFERENTIAL GEAR OIL

Changing Differential Gear Oil

INFOID:0000000003937470

DRAINING

1.

Stop the engine.

2.

Remove the drain plug and gasket from the rear final drive
assembly to drain the differential gear oil.

3.

Install the drain plug with a new gasket to the rear final drive
assembly. Tighten to the specified torque. Refer to 

DLN-450,

"Disassembly and Assembly"

. 

CAUTION:

Do not reuse gasket.

FILLING

1.

Remove the filler plug and gasket from the rear final drive
assembly.

2.

Fill the rear final drive assembly with new differential gear oil
until the level reaches the specified level near the filler plug hole.

3.

Install the filler plug with a new gasket on it to the rear final drive
assembly. Tighten to the specified torque. Refer to 

DLN-450,

"Disassembly and Assembly"

.

CAUTION:

Do not reuse gasket.

Checking Differential Gear Oil

INFOID:0000000003937471

OIL LEAKAGE AND OIL LEVEL

1.

Make sure that differential gear oil is not leaking from the rear final drive assembly or around it.

2.

Check the differential gear oil level from the filler plug hole as
shown.

CAUTION:

Do not start engine while checking differential gear oil level.

3.

Install the filler plug with a new gasket on it to the rear final drive
assembly. Tighten to the specified torque. Refer to 

DLN-450,

"Disassembly and Assembly"

. 

CAUTION:

Do not reuse gasket.

LLIA0068E

Differential gear oil 
grade and capacity

: Refer to 

MA-12, "Fluids and 

Lubricants"

.

LLIA0068E

LLIA0068E

2009 Pathfinder