Nissan Frontier D22. Instruction — 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
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