Nissan Frontier D22. Manual - part 721

FFD-1

FRONT FINAL DRIVE

D  DRIVELINE/AXLE

CONTENTS

C

E

F

G

H

I

J

K

L

M

SECTION 

A

B

FFD

PREPARATION ........................................................... 2

Special Service Tools  ............................................... 2

NOISE, VIBRATION, AND HARSHNESS (NVH) 
TROUBLESHOOTING ................................................ 5

NVH Troubleshooting Chart  ..................................... 5

FRONT OIL SEAL  ...................................................... 6

Removal and Installation  .......................................... 6

REMOVAL ............................................................. 6
INSTALLATION ..................................................... 6

REAR COVER GASKET  ............................................ 8

Removal and Installation  .......................................... 8

REMOVAL ............................................................. 8
INSTALLATION ..................................................... 8

FRONT FINAL DRIVE ASSEMBLY ............................ 9

Removal and Installation  .......................................... 9

REMOVAL ............................................................. 9
INSTALLATION ..................................................... 9

Components ............................................................11
Pre-Inspection ........................................................ 12

TOTAL PRELOAD ............................................... 12
RING GEAR TO DRIVE PINION BACKLASH  .... 12
RING GEAR RUNOUT ........................................ 13
TOOTH CONTACT .............................................. 13
SIDE GEAR TO DRIVE PINION GEAR BACK-
LASH ................................................................... 13

Disassembly and Assembly  ................................... 13

REMOVAL OF DIFFERENTIAL CASE ASSEM-

BLY ...................................................................... 13
REMOVAL OF DRIVE PINION ASSEMLBY  ....... 15
DISASSEMBLY OF DIFFERENTIAL CASE 
ASSEMBLY ......................................................... 16
DISASSEMBLY OF DIFFERENTIAL SIDE 
SHAFT ................................................................. 17
INSPECTION ...................................................... 18
ADJUSTMENT OF DIFFERENTIAL CASE 
ASSEMBLY ......................................................... 19
SIDE BEARING PRELOAD ................................. 19
DRIVE PINION GEAR HEIGHT AND PINION 
BEARING PRELOAD  .......................................... 21
TOOTH CONTACT .............................................. 25
INSTALLATION OF DRIVE PINION ASSEMBLY ... 26
ASSEMBLY OF DIFFERENTIAL SIDE SHAFT ... 28
ASSEMBLY OF DIFFERENTIAL CASE ASSEM-
LBY ...................................................................... 28
INSTALLATION OF DIFFERENTIAL CASE 
ASSEMBLY ......................................................... 30

SERVICE DATA AND SPECIFICATIONS (SDS)  ...... 33

General Specifications ............................................ 33
Ring Gear Runout ................................................... 33
Side Gear Adjustment  ............................................ 33
Side Bearing Adjustment  ........................................ 33
Total Preload Adjustment ........................................ 33
Drive Pinion Height Adjustment .............................. 34
Drive Pinion Preload Adjustment ............................ 34

FFD-2

PREPARATION

PREPARATION

PFP:00002

Special Service Tools

EDS0012A

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

ST3127S000
(See J25765-A)
Preload gauge
1 GG91030000
(J25765)
Torque wrench
2 HT62940000
(

—

)

Socket adapter
3 HT62900000
(

—

)

Socket adapter

Measuring pinion bearing preload and total 
preload

KV38100800
(J34310, J25604-01)
Differential attachment

Mounting final drive housing
(To use, make a new hole.)
a: 152 mm (5.98 in)

KV38108300
(J-44195)
Companion flange wrench

Removing and installing propeller shaft lock 
nut, and drive pinion nut

ST3090S000
(

—

)

Drive pinion rear inner race puller set
1 ST30031000
(J22912-01)
Puller
2 ST30901000
(J26010-01)
Base

Removing and installing drive pinion rear in-
ner cone
a: 79 mm (3.11 in) dia.
b: 45 mm (1.77 in) dia.
c: 35 mm (1.38 in) dia.

ST3306S001
Differential side bearing puller set
1 ST33051001
(J22888-20)
Body
2 ST33061000
(J8107-2)
Adapter

Removing and installing differential side bear-
ing inner cone
a: 28.5 mm (1.122 in) dia.
b: 38 mm (1.50 in) dia.

KV38100300
(J25523)
Differential side bearing drift

Installing side bearing inner cone
a: 54 mm (2.13 in) dia.
b: 46 mm (1.81 in) dia.
c: 32 mm (1.26 in) dia.

NT124

NT119

NT771

NT527

NT072

NT085

PREPARATION

FFD-3

C

E

F

G

H

I

J

K

L

M

A

B

FFD

KV38100600
(J25267)
Side bearing spacer drift

Installing side bearing spacer
a: 8 mm (0.31 in)
b: R42.5 mm (1.673 in)

ST30611000
(J25742-1)
Drift

Installing drive pinion rear bearing outer race 
and drive pinion front bearing outer race
(Use with ST30621000 or ST30613000)

ST30621000
(J25742-5)
Drift

Installing drive pinion rear bearing outer race
(Use with ST30611000)
a: 79 mm (3.11 in) dia.
b: 59 mm (2.32 in) dia.

ST30613000
(J25742-3)
Drift

Installing drive pinion front bearing outer race
(Use with ST30611000)
a: 72 mm (2.83 in) dia.
b: 48 mm (1.89 in) dia.

KV38100500
(J25273)
Gear carrier front oil seal drift

Installing front oil seal and side flange oil seal
a: 85 mm (3.35 in) dia.
b: 60 mm (2.36 in) dia.

KV38100200
(J26233)
Gear carrier side oil seal drift

Installing side oil seal

(J34309)
Differential shim selector

Adjusting bearing pre-load and gear height

Tool number
(Kent-Moore No.)
Tool name

Description

NT528

NT090

NT073

NT073

NT115

NT120

NT134

FFD-4

PREPARATION

(J25269-4)
Side bearing discs
(2 Req'd)

Selecting drive pinion height adjusting washer

(J8129)
Spring gauge

Measuring differential case assembly turning 
resistance

Tool number
(Kent-Moore No.)
Tool name

Description

NT136

NT127