Nissan Pathfinder (2008 year). Manual — part 222
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DLN-360
< DISASSEMBLY AND ASSEMBLY >
[FRONT FINAL DRIVE: R180A]
FRONT FINAL DRIVE
1.
Install side gear thrust washers with the same thickness as the
ones installed prior to disassembly, or reinstall the old ones on
the side gears.
2.
Install the side gears and side gear thrust washers into the dif-
ferential case.
3.
Install the pinion mate thrust washers to the two pinion mate
gears. Then install the pinion mate gears with the pinion mate
thrust washers by aligning them in diagonally opposite positions
and rotating them into the differential case.
4.
Install the pinion mate shaft and align the lock pin hole on the
pinion mate shaft with the lock pin hole on the differential case.
5.
Measure the side gear end play. If necessary, select the appro-
priate side gear thrust washers. Refer to
6.
Drive a new lock pin into the pinion mate shaft until it is flush
with the differential case using suitable tool.
CAUTION:
Do not reuse lock pin.
7.
Align the matching mark of the differential case with the mark of
the drive gear, then place the drive gear onto the differential
case.
SDIA0193J
SDIA2025E
SDIA0195J
SPD030
SDIA2593E
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FRONT FINAL DRIVE
DLN-361
< DISASSEMBLY AND ASSEMBLY >
[FRONT FINAL DRIVE: R180A]
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8.
Apply thread locking sealant into the threaded holes of the drive
gear and install the new drive gear bolts.
• Use Genuine High Strength Thread Locking Sealant or equiv-
alent. Refer to
GI-26, "Recommended Chemical Products and
.
CAUTION:
Make sure the drive gear back and threaded holes are
clean.
9.
Tighten the new drive gear bolts to the specified torque. Refer to
DLN-345, "Disassembly and Assembly"
. After tightening the
new drive gear bolts to the specified torque, tighten an additional
34
°
to 39
°
using Tool.
CAUTION:
• Always use Tool. Avoid tightening based on visual check
alone.
• Tighten new drive gear bolts in a crisscross pattern.
10. Press the new side bearing inner races to the differential case
using Tools.
CAUTION:
Do not reuse side bearing inner races.
11. Install housing spacer into gear carrier.
12. Apply differential gear oil to the side bearings, and install the dif-
ferential case assembly with the side bearing outer races into
the gear carrier.
CAUTION:
Do not reuse side bearing outer race when replacing side
bearing inner race (replace as a set).
SDIA2594E
Tool number
: KV10112100-A (BT-8653-A)
SDIA0247J
Tool number
A: ST33230000 (J-35867)
B: ST33061000 (J-8107-2)
SPD353
SPD527
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DLN-362
< DISASSEMBLY AND ASSEMBLY >
[FRONT FINAL DRIVE: R180A]
FRONT FINAL DRIVE
13. Insert left and right original side bearing adjusting washers in
place between side bearings and gear carrier using Tool.
14. Install the side bearing caps with the matching marks aligned
and tighten the side bearing cap bolts to the specified torque.
Refer to
DLN-345, "Disassembly and Assembly"
15. Apply multi-purpose grease to the lips and differential gear oil to
the circumference of the new side oil seal. Then drive the new
side oil seal in evenly until it becomes flush with the gear carrier
using Tools.
CAUTION:
• Do not reuse side oil seal.
• Do not incline the new side oil seal when installing.
• Apply multi-purpose grease to the lips and differential
gear oil to the circumference of the new side oil seal.
16. Check and adjust tooth contact, backlash, drive gear runout and total preload torque. Refer to
.
Recheck above items.
17. Apply a 3 mm (0.12 in) bead of sealant to the mating surface of
the carrier cover as shown.
• Use Genuine Silicone RTV or equivalent. Refer to
"Recommended Chemical Products and Sealants"
.
CAUTION:
Remove any old sealant adhering to the mating surfaces.
Also remove any moisture, oil, or foreign material adhering
to the application and mating surfaces.
18. Install the carrier cover to the gear carrier. Tighten the bolts to
the specified torque. Refer to
Differential side shaft
Tool number
: KV38100600 (J-25267)
PDIA0706E
PDIA0700E
Tool number
A: ST30720000 (J-25405)
B: ST27863000 (
—
)
PDIA0711E
PDIA0712E
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FRONT FINAL DRIVE
DLN-363
< DISASSEMBLY AND ASSEMBLY >
[FRONT FINAL DRIVE: R180A]
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1.
Press differential side shaft bearing to differential side shaft.
CAUTION:
Do not reuse differential side shaft bearing.
2.
Install snap ring (differential side shaft side).
3.
Install differential side shaft assembly into gear carrier.
4.
Install snap ring (hole side).
5.
Apply multi-purpose grease to the lips and differential gear oil to
the circumference of the new side oil seal. Then drive the new
side oil seal in evenly until it becomes flush with the gear carrier
using Tools.
CAUTION:
• Do not reuse side oil seal.
• Do not incline the new side oil seal when installing.
• Apply multi-purpose grease to the lips and differential
gear oil to the circumference of the new side oil seal.
PDIA0719E
Tool number
A: ST30720000 (J-25405)
B: ST27863000 (
—
)
PDIA0828E
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DLN-364
< SERVICE DATA AND SPECIFICATIONS (SDS)
[FRONT FINAL DRIVE: R180A]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General Specification
INFOID:0000000001297282
Inspection and Adjustment
INFOID:0000000001297283
DRIVE GEAR RUNOUT
Unit: mm (in)
SIDE GEAR CLEARANCE
Unit: mm (in)
PRELOAD TORQUE
Unit: N·m (kg-m, in-lb)
BACKLASH
Unit: mm (in)
COMPANION FLANGE RUNOUT
Unit: mm (in)
SELECTIVE PARTS
Drive Pinion Height Adjusting Washer
Applied model
VQ40DE
Final drive model
R180A
Gear ratio
3.357
Number of teeth (Drive gear/Drive pinion)
47/14
Differential gear oil capacity (Approx.)
0.85
(1-3/4 US pt, 1-1/2 lmp pt)
Number of pinion gears
2
Drive pinion adjustment spacer type
Collapsible
Item
Runout limit
Drive gear back face
0.08 (0.0031) or less
Item
Specification
Side gear back clearance (Clearance between side gear and differ-
ential case for adjusting side gear backlash)
0.1 (0.004) or less
(Each gear should rotate smoothly without excessive resistance
during differential motion.)
Item
Specification
Drive pinion bearing preload torque
1.08 - 1.66 (0.11 - 0.16, 10 - 14)
Side bearing preload torque
0.59 - 1.08 (0.06 - 0.11, 6 - 9)
Total preload torque
(Total preload torque = drive pinion bearing preload torque + side
bearing preload torque).
1.67 - 2.74 (0.17 - 0.27, 15 - 24)
Item
Specification
Drive gear to drive pinion backlash
0.10 - 0.15 (0.0039 - 0.0059)
Item
Runout limit
Companion flange face
0.1 (0.004) or less
Companion flange inner side
0.1 (0.004) or less
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SERVICE DATA AND SPECIFICATIONS (SDS)
DLN-365
< SERVICE DATA AND SPECIFICATIONS (SDS)
[FRONT FINAL DRIVE: R180A]
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Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Side Gear Thrust Washer
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Side Bearing Adjusting Washer
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Thickness Part
number*
Thickness Part
number*
3.09 (0.1217)
3.12 (0.1228)
3.15 (0.1240)
3.18 (0.1252)
3.21 (0.1264)
3.24 (0.1276)
3.27 (0.1287)
3.30 (0.1299)
3.33 (0.1311)
3.36 (0.1323)
38154 EA000
38154 EA001
38154 EA002
38154 EA003
38154 EA004
38154 EA005
38154 EA006
38154 EA007
38154 EA008
38154 EA009
3.39 (0.1335)
3.42 (0.1346)
3.45 (0.1358)
3.48 (0.1370)
3.51 (0.1382)
3.54 (0.1394)
3.57 (0.1406)
3.60 (0.1417)
3.63 (0.1429)
3.66 (0.1441)
38154 EA010
38154 EA011
38154 EA012
38154 EA013
38154 EA014
38154 EA015
38154 EA016
38154 EA017
38154 EA018
38154 EA019
Thickness Part
number*
Thickness Part
number*
0.75 (0.0295)
0.78 (0.0307)
0.81 (0.0319)
0.84 (0.0331)
38424 W2010
38424 W2011
38424 W2012
38424 W2013
0.87 (0.0343)
0.90 (0.0354)
0.93 (0.0366)
0.96 (0.0378)
38424 W2014
38424 W2015
38424 W2016
38424 W2017
Thickness
Part number*
Thickness
Part number*
1.95 (0.0768)
2.00 (0.0787)
2.05 (0.0807)
2.10 (0.0827)
2.15 (0.0846)
2.20 (0.0866)
2.25 (0.0886)
2.30 (0.0906)
38453 EA000
38453 EA001
38453 EA002
38453 EA003
38453 EA004
38453 EA005
38453 EA006
38453 EA007
2.35 (0.0925)
2.40 (0.0945)
2.45 (0.0965)
2.50 (0.0984)
2.55 (0.1004)
2.60 (0.1024)
2.65 (0.1043)
38453 EA008
38453 EA009
38453 EA010
38453 EA011
38453 EA012
38453 EA013
38453 EA014
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DLN-366
< PRECAUTION >
[FRONT FINAL DRIVE: M205]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Servicing Front Final Drive
INFOID:0000000001315882
• 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.
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PREPARATION
DLN-367
< PREPARATION >
[FRONT FINAL DRIVE: M205]
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PREPARATION
PREPARATION
Special Service Tool
INFOID:0000000001315883
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
ST35271000
(
—
)
Drift
Installing drive pinion front bearing outer
race.
a: 72 mm (2.83 in) dia.
b: 36 mm (1.42 in) dia.
KV38100500
(J-25273)
Drift
Installing front oil seal.
a: 80 mm (3.15 in) dia.
b: 60 mm (2.36 in) dia.
ST30021000
(
—
)
Puller
• Removing side bearing inner race.
• Removing drive pinion rear bearing inner
race.
KV38100300
(J-25523)
Drift
Installing side bearing inner race.
a: 54 mm (2.13 in) dia.
b: 46 mm (1.81 in) dia.
c: 32 mm (1.26 in) dia.
ST30901000
(
—
)
Drift
Installing drive pinion rear bearing outer race.
A: 79 mm (3.11 in) dia.
B: 45 mm (1.77 in) dia.
C: 35.2 mm (1.39 in) dia.
KV40104810
(
—
)
Drift
Installing drive pinion front bearing outer
race.
a: 68 mm (2.68 in) dia.
b: 55 mm (2.17 in) dia.
ZZA0702D
ZZA0811D
ZZA0700D
ZZA1046D
SDIA0217J
ZZA1003D
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