Nissan Pathfinder (2007 year). Instruction — part 251
FFD-1
FRONT FINAL DRIVE
D DRIVELINE/AXLE
CONTENTS
C
E
F
G
H
I
J
K
L
M
SECTION
FFD
A
B
FFD
2007 Pathfinder
PRECAUTIONS . . . . . . . . . . . . . . .. 2
Precautions for Servicing Front Final Drive . . . .. 2
PREPARATION . . . . . . . . . . . . . . ... 3
Special Service Tools . . . . . . . . . . . ... 3
Commercial Service Tools . . . . . . . . . . 5
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING . . . . . . . . . . . . 6
NVH Troubleshooting Chart . . . . . . . . . . 6
DESCRIPTION . . . . . . . . . . . . . . . 7
Cross-Sectional View . . . . . . . . . . . ... 7
DIFFERENTIAL GEAR OIL . . . . . . . . . . 8
Changing Differential Gear Oil . . . . . . . . . 8
DRAINING . . . . . . . . . . . . . . . . 8
FILLING . . . . . . . . . . . . . . . . . 8
Checking Differential Gear Oil . . . . . . . . .. 8
DIFFERENTIAL GEAR OIL LEAKAGE AND
LEVEL . . . . . . . . . . . . . . . . ... 8
FRONT OIL SEAL . . . . . . . . . . . . . .. 9
Removal and Installation . . . . . . . . . . .. 9
REMOVAL . . . . . . . . . . . . . . . . 9
INSTALLATION . . . . . . . . . . . . ... 10
SIDE OIL SEAL . . . . . . . . . . . . . . .11
Removal and Installation . . . . . . . . . . .11
REMOVAL . . . . . . . . . . . . . . . 11
INSTALLATION . . . . . . . . . . . . . 11
CARRIER COVER . . . . . . . . . . . . . 12
Removal and Installation . . . . . . . . . . 12
REMOVAL . . . . . . . . . . . . . . ... 12
INSTALLATION . . . . . . . . . . . . ... 12
FRONT FINAL DRIVE ASSEMBLY . . . . . . .. 13
Removal and Installation . . . . . . . . . . 13
REMOVAL . . . . . . . . . . . . . . ... 13
INSTALLATION . . . . . . . . . . . . ... 14
Disassembly and Assembly . . . . . . . . . 15
COMPONENTS . . . . . . . . . . . . ... 15
ASSEMBLY INSPECTION AND ADJUSTMENT
SERVICE DATA AND SPECIFICATIONS (SDS) . .. 34
General Specifications . . . . . . . . . . . 34
Inspection and Adjustment . . . . . . . . . . 34
FFD-2
PRECAUTIONS
2007 Pathfinder
PRECAUTIONS
PFP:00001
Precautions for Servicing Front Final Drive
EDS0039G
●
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.
PREPARATION
FFD-3
C
E
F
G
H
I
J
K
L
M
A
B
FFD
2007 Pathfinder
PREPARATION
PFP:00002
Special Service Tools
EDS0039H
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
KV38108300
(J-44195)
Flange wrench
Removing and installing drive pinion lock nut
KV381054S0
(J-34286)
Puller
Removing front oil seal
ST30720000
(J-25405)
Drift
●
Installing front oil seal
●
Installing side oil seal
a: 77 mm (3.03 in) dia.
b: 55.5 mm (2.185 in) dia.
ST27863000
(
—
)
Drift
●
Installing front oil seal
●
Installing side oil seal
a: 74.5 mm (2.933 in) dia.
b: 62.5 mm (2.461 in) dia.
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
NT771
ZZA0601D
ZZA0811D
ZZA1003D
NT124
S-NT046
FFD-4
PREPARATION
2007 Pathfinder
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)
Replacer
Removing drive pinion rear bearing inner race
KV38100600
(J-25267)
Drift
Installing side bearing adjusting washer
ST30613000
(J-25742-3)
Drift
Installing drive pinion rear bearing outer race
a: 72 mm (2.83 in) dia.
b: 48 mm (1.89 in) dia.
ST30611000
(J-25742-1)
Drift bar
Installing drive pinion rear bearing outer race
(Use with ST30613000)
KV38100200
(J-26233)
Drift
Installing drive pinion front bearing outer race
a: 65 mm (2.56 in) dia.
b: 49 mm (1.93 in) dia.
ST30901000
(J-26010-01)
Drift
Installing drive pinion rear bearing inner race
a: 79 mm (3.11 in) dia.
b: 45 mm (1.77 in) dia.
c: 35.2 mm (1.386 in) dia.
Tool number
(Kent-Moore No.)
Tool name
Description
NT072
ZZA0700D
SDIA0429J
ZZA1000D
S-NT090
ZZA1143D
ZZA0978D
PREPARATION
FFD-5
C
E
F
G
H
I
J
K
L
M
A
B
FFD
2007 Pathfinder
Commercial Service Tools
EDS0039I
ST33200000
(J-26082)
Drift
Installing drive pinion front bearing inner race
a: 60 mm (2.36 in) dia.
b: 44.5 mm (1.752 in) dia.
ST33230000
(J-35867)
Drift
Installing side bearing inner race
a: 51 mm (2.01 in) dia.
b: 41 mm (1.61 in) dia.
c: 28 mm (1.10 in) dia.
(
—
)
(J-34309)
Differential shim selector tool
Adjusting bearing preload and drive pinion
height
(
—
)
(J-25269-18)
Side bearing disc (2 Req'd)
Selecting drive pinion height adjusting washer
KV10112100
(BT-8653-A)
Angle wrench
Tightening bolts for drive gear
Tool number
(Kent-Moore No.)
Tool name
Description
ZZA1002D
ZZA1046D
NT134
NT135
NT014
Tool name
Description
Power tool
Loosening nuts and bolts
PBIC0190E
FFD-6
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
2007 Pathfinder
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
PFP:00003
NVH Troubleshooting Chart
EDS0039J
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×
: Applicable
Reference page
Possible cause and SUSPECTED PARTS
G
e
ar
t
o
o
th
roug
h
G
e
a
r c
o
nt
ac
t i
m
pr
o
p
e
r
T
o
ot
h
sur
fac
es
w
o
rn
Ba
ckl
ash
i
n
c
o
rr
ect
C
o
m
pan
io
n
f
lan
ge
ex
c
e
s
s
iv
e
r
u
n
o
u
t
G
e
ar
oi
l
im
p
rop
er
PR
OP
EL
LE
R S
H
A
F
T
FR
ON
T AXL
E
F
R
O
N
T
S
U
SP
EN
SI
ON
TI
R
E
S
RO
AD
W
H
E
E
L
D
R
IV
E
SH
AF
T
BR
AK
ES
ST
EE
RI
N
G
Symptom
Noise
×
×
×
×
×
×
×
×
×
×
×
×
×
×
DESCRIPTION
FFD-7
C
E
F
G
H
I
J
K
L
M
A
B
FFD
2007 Pathfinder
DESCRIPTION
PFP:00000
Cross-Sectional View
EDS0039K
1.
Differential side shaft
2.
Differential side shaft bearing
3.
Side gear
4.
Drive gear
5.
Pinion mate shaft
6.
Differential case
7.
Side bearing
8.
Pinion mate gear
9.
Drive pinion
10. Collapsible spacer
11.
Companion flange
12. Drive pinion front bearing
13. Drive pinion rear bearing
14. Housing spacer
PDIA0695E
FFD-8
DIFFERENTIAL GEAR OIL
2007 Pathfinder
DIFFERENTIAL GEAR OIL
PFP:KLD30
Changing Differential Gear Oil
EDS0039L
DRAINING
1.
Stop the engine.
2.
Remove the drain plug and gasket from the front final drive
assembly to drain the differential gear oil.
3.
Install the drain plug with a new gasket to the front final drive
assembly. Tighten to the specified torque. Refer to
CAUTION:
Do not reuse gasket.
FILLING
1.
Remove the filler plug and gasket from the front final drive
assembly.
2.
Fill the front 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 front final drive
assembly. Tighten to the specified torque. Refer to
CAUTION:
Do not reuse gasket.
Checking Differential Gear Oil
EDS0039M
DIFFERENTIAL GEAR OIL LEAKAGE AND LEVEL
1.
Make sure that differential gear oil is not leaking from the front 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 front final drive
assembly. Tighten to the specified torque. Refer to
CAUTION:
Do not reuse gasket.
LDIA0175E
Differential gear oil
grade and capacity
: Refer to
LDIA0176E
LDIA0176E
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