Nissan Pathfinder (2007 year). Manual - part 254

FRONT FINAL DRIVE ASSEMBLY

FFD-25

FFD

2007 Pathfinder

●

Drive pinion front bearing; make sure the J-34309-3 drive
pinion front bearing seat is secured tightly against the J-
34309-2 gauge anvil. Then turn the J-34309-7 drive pinion
front bearing pilot to secure the drive pinon front bearing in its
proper position.

●

Drive pinion rear bearing; the J-34309-8 drive pinion rear
bearing pilot is used to center the drive pinion rear bearing
only. The J-34309-4 drive pinion rear bearing locking seat is
used to lock the drive pinion rear bearing to the assembly.

●

Installation of J-34309-9 and J-34309-16; place a suitable
2.5 mm (0.098 in) thick plain washer between J-34309-9 and
J-34309-16. Both surfaces of J-34309-9 and J-34309-16 must
be parallel with a clearance of 2.5 mm (0.098 in).

Install the drive pinion rear bearing inner race into the gear car-
rier. Then insert the drive pinion height adjusting washer selec-
tor tool, J-34309-1, gauge screw assembly.

Assemble the drive pinion front bearing inner race and the J-
34309-2 gauge anvil. Assemble them together with the J-34309-
1 gauge screw in the gear carrier. Make sure that the drive pin-
ion height gauge plate, J-34309-16, will turn a full 360

. Tighten

the two sections together by hand.

Turn the assembly several times to seat the drive pinon bear-
ings.

SPD197A

SPD893

SPD199A

SPD770

FFD-26

FRONT FINAL DRIVE ASSEMBLY

2007 Pathfinder

Measure the turning torque at the end of the J-34309-2 gauge
anvil using Tool.

Place the J-34309-10 “R180A” drive pinion height adapter onto
the gauge plate and tighten it by hand.

CAUTION:

Make sure all machined surfaces are clean.

Position the side bearing discs, Tool, and arbor firmly into the
side bearing bores. Install the side bearing caps and tighten the
side bearing cap bolts to the specified torque. Refer to

FFD-15,

"COMPONENTS"

Select the correct standard drive pinion height adjusting washer
thickness. Select by using a standard gauge of 3 mm (0.12 in)
and your J-34309-101 feeler gauge. Measure the distance
between the J-34309-10 drive pinion height adapter, including
the standard gauge and the arbor.

10. Write down the exact measurement (the value of feeler gauge).

Tool number

: ST3127S000 (J-25765- A)

Turning torque specification:

1.0 - 1.6 N·m (0.11 - 0.16 kg-m, 9 - 14 in-lb)

PDIA0566E

SPD208A

Tool number

—

(J-25269-18)

SPD211A

SPD204A

SPD775

FRONT FINAL DRIVE ASSEMBLY

FFD-27

FFD

2007 Pathfinder

11. Correct the drive pinion height adjusting washer size by referring

to the drive pinion “head number”.
There are two numbers painted on the drive pinion. The first
one refers to the drive pinion and drive gear as a matched
set. This number should be the same as the number on the
drive gear. The second number is the drive pinion “head
number”. It refers to the ideal drive pinion height from stan-
dard for quietest operation. Use the following chart to
determine the correct drive pinion height adjusting washer.

12. Select the correct drive pinion height adjusting washer. Refer to

FFD-35, "Drive Pinion Height Adjusting

Washer"

13. Remove the Tool from the gear carrier and disassemble to

retrieve the drive pinion bearings.

Head number

Add or remove from the standard drive pinion

height adjusting washer thickness measurement

- 6
- 5
- 4
- 3
- 2
- 1

+1
+2
+3
+4
+5
+6

Add 0.06 mm (0.0024 in)
Add 0.05 mm (0.0020 in)
Add 0.04 mm (0.0016 in)
Add 0.03 mm (0.0012 in)
Add 0.02 mm (0.0008 in)
Add 0.01 mm (0.0004 in)

Use the selected washer thickness

Subtract 0.01 mm (0.0004 in)
Subtract 0.02 mm (0.0008 in)
Subtract 0.03 mm (0.0012 in)
Subtract 0.04 mm (0.0016 in)
Subtract 0.05 mm (0.0020 in)
Subtract 0.06 mm (0.0024 in)

Tool number

—

(J-34309)

SPD542

SPD205A

FFD-28

FRONT FINAL DRIVE ASSEMBLY

2007 Pathfinder

ASSEMBLY
Drive Pinion Assembly

Install drive pinion rear bearing outer race and drive pinion front
bearing outer race using Tools.

CAUTION:

●

First tap the drive pinion bearing outer race until it
becomes flush with the gear carrier.

●

Do not reuse drive pinion front and rear bearing outer
race.

Select drive pinion height adjusting washer. Refer to

FFD-24, "Drive Pinion Height"

Install the selected drive pinion height adjusting washer to the
drive pinion. Press the drive pinion rear bearing inner race to it
using Tool.

CAUTION:

●

Install the drive pinion height adjusting washer in the
proper direction as shown.

●

Do not reuse drive pinion rear bearing inner race.

Install the collapsible spacer to the drive pinion.

CAUTION:

Do not reuse collapsible spacer.

Apply differential gear oil to the drive pinion rear bearing, and
install the drive pinion assembly to the gear carrier.

Apply differential gear oil to the drive pinion front bearing, and
install the drive pinion front bearing inner race to the drive pinion
assembly.

CAUTION:

Do not reuse drive pinion front bearing inner race.

Tool number

A: ST30611000 (J-25742-1)

B: ST30613000 (J-25742-3)

C: KV38100200 (J-26233)

PDIA0707E

Tool number

: ST30901000 (J-26010-01)

SDIA0048E

PDIA0708E

FRONT FINAL DRIVE ASSEMBLY

FFD-29

FFD

2007 Pathfinder

Press the drive pinion front bearing inner race to the drive pinion
as far as drive pinion lock nut can be tightened using Tool.

Apply multi-purpose grease to the lips and differential gear oil to
the circumference of the new front oil seal. Then drive the new
front oil seal in evenly until it becomes flush with the gear carrier
using Tools.

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.

Install the companion flange to the drive pinion while aligning the matching marks.

10. Apply anti-corrosive oil to the threads of the drive pinion and the

seating surface of the new drive pinion lock nut. Then adjust the
drive pinion lock nut tightening torque using Tool A, and check
the drive pinion bearing preload torque using Tool B.

CAUTION:

●

Do not reuse drive pinion lock nut.

●

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

FFD-15, "COMPONENTS"

●

If the drive pinion bearing preload torque exceeds the
specified value, replace collapsible spacer and tighten it
again to adjust. Do not loosen drive pinion lock nut to
adjust the drive pinion bearing preload torque.

●

After adjustment, rotate drive pinion back and forth 2 to 3
times to check for unusual noise, rotation malfunction,
and other malfunctions.

11. Check companion flange runout. Refer to

FFD-18, "Companion Flange Runout"

12. Install the differential case assembly. Refer to

FFD-30, "Differential Assembly"

Tool number

: ST33200000 (J-26082)

PDIA0709E

Tool number

A: ST30720000 (J-25405)

B: ST27863000 (

—

)

PDIA0717E

Tool number

A: KV38108300 (J-44195)

B: ST3127S000 (J-25765-A)

Drive pinion bearing preload torque:

1.08 - 1.66 N·m (0.11 - 0.16 kg-m, 10 - 14 in-lb)

WDIA0382E

FFD-30

FRONT FINAL DRIVE ASSEMBLY

2007 Pathfinder

Differential Assembly

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.

Install the side gears and side gear thrust washers into the dif-
ferential case.

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.

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.

Measure the side gear end play. If necessary, select the appro-
priate side gear thrust washers. Refer to

FFD-24, "Side Gear

Back Clearance"

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.

SDIA0193J

SDIA2025E

SDIA0195J

SPD030

FRONT FINAL DRIVE ASSEMBLY

FFD-31

FFD

2007 Pathfinder

Align the matching mark of the differential case with the mark of
the drive gear, then place the drive gear onto the differential
case.

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

Sealants"

CAUTION:

Make sure the drive gear back and threaded holes are
clean.

Tighten the new drive gear bolts to the specified torque. Refer to

FFD-15, "COMPONENTS"

. 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.

SDIA2593E

SDIA2594E

Tool number

: KV10112100-A (BT-8653-A)

SDIA0247J

Tool number

A: ST33230000 (J-35867)

B: ST33061000 (J-8107-2)

SPD353

FFD-32

FRONT FINAL DRIVE ASSEMBLY

2007 Pathfinder

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).

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

FFD-15, "COMPONENTS"

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

FFD-17,

"Tooth Contact"

FFD-18, "Backlash"

FFD-16, "Drive Gear Runout"

and

FFD-16, "Total Preload Torque"

.
Recheck above items.

SPD527

Tool number

: KV38100600 (J-25267)

PDIA0706E

PDIA0700E

Tool number

A: ST30720000 (J-25405)

B: ST27863000 (

—

)

PDIA0711E

Content .. 252 253 254 255 ..