Nissan Frontier. Manual - part 337

DLN-250

< SYMPTOM DIAGNOSIS >

[REAR FINAL DRIVE: M226 ]

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

SYMPTOM DIAGNOSIS

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

INFOID:0000000009479802

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

×: Applicable

Reference page

—

DLN-250

—

DLN-256

DLN-256

MA-1

6

MA-1

8

DL

N-14

1,

 "NVH T

ro

ub

les

ho

ot

ing

 Ch

art"

 (2S1

33

0), 

DL

N-16

1,

 "NVH T

rou

bl

es

ho

ot

in

g Cha

rt"

 (3S

133

0) 

or 

DL

N-17

2, 

"NVH T

rou

bl

es

ho

oti

ng

 Cha

rt"

 (3S1330-2B

J100)

RAX-17

, "

N

V

H

 T

rou

bl

es

ho

oti

ng

 Cha

rt"

, 

RSU-4, 

"NVH T

rou

bl

es

ho

ot

ing

 Cha

rt"

WT

-4

4,

 "NVH T

ro

ub

les

ho

ot

ing

 Ch

art"

RAX-1

7

, "NVH T

rou

bl

es

ho

ot

in

g Cha

rt"

BR-5, 

"NVH T

ro

ubl

es

ho

ot

ing

 Cha

rt"

ST

-5,

 "NVH T

rou

bl

es

ho

ot

in

g Cha

rt

"

Possible cause and SUSPECTED PARTS

G

e

ar t

oo

th 

roug

h

Gea

r co

nt

ac

t 

imp

rop

er

To

ot

h s

u

rf

ac

es

 worn

Ba

ck

la

sh

 in

co

rrec

t

Co

mp

an

io

n f

lan

ge

 e

xc

es

si

ve

 run

ou

t

Gea

r oi

l i

mp

rop

er

P

R

OPE

LLE

R SHAFT

A

XLE AND

 SUSPENSI

ON

TI

RE

S

ROAD W

H

EEL

A

XLE SHAFT

BR

AK

E

S

S

T

EERING

Symptom

Noise

×

×

×

×

×

×

×

×

×

×

×

×

×

DIFFERENTIAL GEAR OIL

DLN-251

< PERIODIC MAINTENANCE >

[REAR FINAL DRIVE: M226 ]

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PERIODIC MAINTENANCE

DIFFERENTIAL GEAR OIL

Changing Differential Gear Oil

INFOID:0000000009479803

DRAINING

1. Stop engine.
2. Remove the drain plug from the rear final drive assembly to

drain the differential gear oil.

3. Install the drain plug with sealant applied on the threads to the

rear final drive assembly. Tighten to the specified torque. Refer

to  

DLN-256, "Disassembly and Assembly"

.

• Use High Performance Thread Sealant or equivalent. Refer to

GI-21, "Recommended Chemical Products and Sealants"

.

FILLING

1. Remove the filler plug 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 sealant applied on the threads to the

rear final drive assembly. Tighten to the specified torque. Refer

to  

DLN-256, "Disassembly and Assembly"

.

• Use High Performance Thread Sealant or equivalent. Refer to 

GI-21, "Recommended Chemical Prod-

ucts and Sealants"

.

Checking Differential Gear Oil

INFOID:0000000009479804

DIFFERENTIAL GEAR OIL LEAKAGE AND 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 sealant applied on the threads to the

rear final drive assembly. Tighten to the specified torque. Refer

to 

DLN-256, "Disassembly and Assembly"

.

• Use High Performance Thread Sealant or equivalent. Refer to

GI-21, "Recommended Chemical Products and Sealants"

.

LDIA0183E

Differential gear oil 
grade and capacity

: Refer to  

MA-16, "FOR USA 

AND CANADA : Fluids and Lu-
bricants"

 (United States and 

Canada) or 

MA-18, "FOR MEXI-

CO : Fluids and Lubri-
cants"

(Mexico).

LDIA0127E

LDIA0127E

DLN-252

< REMOVAL AND INSTALLATION >

[REAR FINAL DRIVE: M226 ]

FRONT OIL SEAL

REMOVAL AND INSTALLATION

FRONT OIL SEAL

Removal and Installation

INFOID:0000000009479805

REMOVAL

1. Remove rear propeller shaft. Refer to 

DLN-143, "Removal and Installation"

 (2S1330), 

DLN-163, "Removal

and Installation"

 (3S1330) or 

DLN-174, "Removal and Installation"

 (3S1330-2BJ100).

2. Remove brake calipers and rotors. Refer to 

BR-40, "Removal and Installation of Brake Caliper and Disc

Rotor"

.

3. Measure the total preload torque. Refer to 

DLN-265, "Inspection and Adjustment"

.

NOTE:

Record the total preload torque measurement.

4. Remove the drive pinion lock nut using suitable tool.

5. 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.

6. Remove the companion flange using suitable tool.

7. Remove oil seal/dust shield and discard.

CAUTION:

Do not reuse oil seal/dust shield

8. Remove the front oil seal using Tool.

INSTALLATION

LDIA0122E

WDIA0249E

Tool number

: ST33290001 (J-34286)

LDIA0124E

FRONT OIL SEAL

DLN-253

< REMOVAL AND INSTALLATION >

[REAR FINAL DRIVE: M226 ]

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1. 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 and differential

gear oil to the circumference of the new front oil seal.

2. Install oil seal/dust shield.

CAUTION:

Do not reuse oil seal/dust shield.

3. Install the companion flange to the drive pinion while aligning the matching marks.
4. Apply anti-corrosive oil to the threads of the drive pinion and the

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

pinion lock nut washer. Then adjust the drive pinion lock nut

tightening torque using suitable tool (A), and check the total pre-

load torque using Tool (B).

• The total preload torque should be within the total preload

torque specification. When not replacing the collapsible

spacer, it should also be equal to the measurement taken dur-

ing removal plus an additional 0.56 N·m (0.06 Kg-m, 5 in-lb).

• If the total preload torque is low, tighten the drive pinion lock

nut in 6.8 N·m (0.69 Kg-m, 5ft-lb) increments until the total pre-

load torque is met.

CAUTION:

• Do not reuse drive pinion lock nut or drive pinion lock nut

washer.

• 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-256, "Dis-

assembly and Assembly"

.

• Do not loosen drive pinion lock nut to adjust the total preload torque. If the total preload torque

exceeds the specifications, replace the collapsible spacer and tighten it again to adjust. Refer to

DLN-256, "Disassembly and Assembly"

.

• After adjustment, rotate drive pinion back and forth 2 to 3 times to check for unusual noise, rota-

tion malfunction, and other malfunctions.

5. Installation of the remaining components is in the reverse order of removal.

CAUTION:

Check the differential gear oil level and refill as necessary. Refer to 

DLN-251, "Checking Differen-

tial Gear Oil"

.

Tool number

: ST15310000 ( — )

LDIA0125E

Tool number

(B): ST3127S000 (J-25765-A)

Total preload torque: Refer to 

DLN-265, "Inspection 

and Adjustment"

.

WDIA0380E