Nissan Pathfinder. Manual - part 422

DLN-130

< UNIT REMOVAL AND INSTALLATION >

[REAR FINAL DRIVE: R145K1]

REAR FINAL DRIVE ASSEMBLY

• Install the electric controlled coupling breather hose (1) as shown

in the figure.

- Install electric controlled coupling breather hose at the coupling

side to the metal connector (3) of the coupling (2) all the way to the
point shown by the solid arrow (

).

- Install electric controlled coupling breather hose at the suspension

member side until dimension (A) shown as follows.

• If remove resin connector of the electric controlled coupling (1) and

metal connector (2), install them as shown in the figure.

- Install the resin connector at the insertion side to the suspension

member, facing to the vehicle front.

- Install the metal connector to the coupling cover, facing to the vehi-

cle front.

CAUTION:

Do not reuse breather connector and hose clip.

• If remove plug (1) and (2), install them as shown in the figure.

CAUTION:

Do not reuse breather connector and hose clip.

• When oil leaks while removing final drive assembly, check oil level

after the installation. Refer to 

DLN-115, "Inspection"

.

• When replacing rear final drive assembly, perform writing unit char-

acteristics. Refer to 

DLN-112, "Work Procedure"

.

: Vehicle front

A

: 15 mm (0.59 in)

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: Vehicle front

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REAR FINAL DRIVE ASSEMBLY

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< UNIT DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145K1]

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UNIT DISASSEMBLY AND ASSEMBLY

REAR FINAL DRIVE ASSEMBLY

Exploded View

INFOID:0000000009177827

Disassembly

INFOID:0000000009177828

1. Remove torsional damper mounting nut, using a flange wrench

(1) (commercial service tool).

2. Remove torsional damper.
3. Remove harness bracket.
4. Remove electric controlled coupling.
5. Remove wave washer.

1.

Stud bolt

2.

Filler plug

3.

Side oil seal

4.

Final drive assembly

5.

Front oil seal

6.

Wave washer

7.

Electric controlled coupling

8.

Torsional damper

9.

Reamer bolt

10. Harness bracket

11. Drain plug

A.

Oil seal lip

B.

Final drive mounting face

: Always replace after every disassembly.

: N·m (kg-m, ft-lb)

: N·m (kg-m, in-lb)

: Apply gear oil.

: Apply Genuine Silicone RTV or equivalent. Refer to 

GI-22, "Recommended Chemical Products and Sealants"

.

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DLN-132

< UNIT DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145K1]

REAR FINAL DRIVE ASSEMBLY

6. Remove front oil seal (1) from final drive assembly, using a oil

seal remover.

CAUTION:

Never damage final drive assembly.

7. Remove drain plug and filler plug, if necessary.

8. Remove side oil seal (1), using a oil seal remover.

CAUTION:

Never damage final drive assembly and side cover.

9. Remove stud bolt from side cover, if necessary.

Assembly

INFOID:0000000009177829

1. Install stud bolt to side cover.

CAUTION:

Never reuse stud bolt.

2. Install side oil seal (cover side) until it becomes flush with the

carrier end, using the drift (A) [SST: KV40105740 (

—

)].

CAUTION:

• Never reuse oil seal.

• When installing, do not incline oil seals.

• Apply gear oil onto side oil seal lip.

3. Install side oil seal (carrier side) until it becomes flush with the

carrier end, using the drift (A) and drift bar (B).

CAUTION:

• Never reuse oil seal.

• When installing, do not incline oil seals.

• Apply gear oil onto side oil seal lip.

4. Install drain plug.

CAUTION:

Never reuse drain plug.

5. Install filler plug.

CAUTION:

Never reuse filler plug.

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A : Drift [SST: KV31103000 (J-38982)]
B : Drift bar [SST: ST35325000 (

—

)]

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REAR FINAL DRIVE ASSEMBLY

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< UNIT DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R145K1]

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6. Using the drift (A) [SST: ST30720000 (J-25405)], install front oil

seal (1) as shown in the figure.

CAUTION:

• Never reuse oil seal.

• When installing, never incline oil seal.

• Apply gear oil onto side oil seal lip.

7. Install wave washer to electric controlled coupling.

8. Apply liquid gasket (1) to mating surface of coupling cover.

Use Genuine Silicone RTV or equivalent. Refer to 

GI-22, "Rec-

ommended Chemical Products and Sealants"

.

CAUTION:

• Remove old gasket adhering to the mounting surfaces.

Also remove any moisture, oil, or foreign material adher-

ing to the mounting surfaces.

• The width of sealant bend is approximately 3 mm (0.012

in).

9. Install electric controlled coupling to spline of drive pinion inside final drive assembly.

CAUTION:

• Align the pin (A) on electric controlled coupling with the

groove (B) of final drive assembly.

• Be careful not to damage center oil seal.

10. Press the electric controlled coupling pin to check that it is posi-

tioned in the groove of the final drive assembly as shown in the

figure.

NOTE:

If the pin is properly positioned in the groove, then the electric

controlled coupling can be pressed by the same amount of flec-

tion of the wave washer.

B : 0.5 – 1.2 mm (0.020 – 0.047 in)

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