Nissan Pathfinder. Manual - part 420

DLN-122

< REMOVAL AND INSTALLATION >

[REAR FINAL DRIVE: R145K1]

ELECTRIC CONTROLLED COUPLING

4. Remove the electric controlled coupling breather hose (1).

5. Disconnect the electric controlled coupling harness connector and unclip harness from harness bracket.
6. Remove the 6 bolts from the electric controlled coupling.
7. Remove the electric controlled coupling.

CAUTION:

Be careful that the wave washer does not fall out or get damaged when removing the electric con-

trolled coupling.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

• Do not reuse hose clamp and breather connector.

• Make sure there are no pinched or restricted areas on the breather hose caused by bending or wind-

ing when installing it.

• Install the hose clamp at the final drive side, with the tab facing to the vehicle front.

• Install the hose clamp at the suspension member side, with the tab facing downward.

• Use Genuine Silicone RTV or an equivalent. Refer to 

GI-22, "Recommended Chemical Products and

Sealants"

.

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

Use Genuine Silicone RTV or equivalent. Refer to 

GI-22, "Recom-

mended Chemical Products and Sealants"

.

CAUTION:

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

• 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.

AWDIA1088ZZ

JSDIA3059ZZ

JSDIA3060ZZ

ELECTRIC CONTROLLED COUPLING

DLN-123

< REMOVAL AND INSTALLATION >

[REAR FINAL DRIVE: R145K1]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

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

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

NOTE:

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

trolled coupling can be pressed into position by the same amount

of flection of the wave washer.

• Temporarily tighten reamer bolts (1) to the positions shown.

CAUTION:

• Do not use tools. Always tighten by hand.

• If reamer bolts cannot be tightened all the way by hand, the

electric controlled coupling pin may not be positioned in the

groove of the final drive assembly. In this case, remove elec-

tric controlled coupling and reinstall it.

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

- 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) as shown.

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

connector (2) are removed, install them as shown.

- 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.

• Remove the old sealant from mating surfaces using a suitable tool before installing. 

JSDIA3068ZZ

: Front

(A) : 15 mm (0.59 in)

JSDIA3061ZZ

JSDIA3087ZZ

JSDIA3086ZZ

DLN-124

< REMOVAL AND INSTALLATION >

[REAR FINAL DRIVE: R145K1]

FRONT OIL SEAL

FRONT OIL SEAL

Exploded View

INFOID:0000000009704410

Removal and Installation

INFOID:0000000009704411

REMOVAL

1. Drain rear differential gear oil. Refer to 

DLN-115, "Draining"

.

2. Remove the rear propeller shaft from the rear final drive and support the rear propeller shaft with suitable

wire. Refer to 

DLN-103, "Exploded View"

. 

3. Remove torsional damper nuts using suitable tool (A) and

remove torsional damper (if necessary).

4. Remove the electric controlled coupling. Refer to 

DLN-121, "Removal and Installation"

.

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

JSDIA3032GB

AWDIA1089ZZ

FRONT OIL SEAL

DLN-125

< REMOVAL AND INSTALLATION >

[REAR FINAL DRIVE: R145K1]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

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

able tool.

CAUTION:

Do not damage final drive assembly.

INSTALLATION

1. Install drain plug.

CAUTION:

Do not reuse drain plug.

2. Using a Tool (A) install front oil seal (1) as shown.

CAUTION:

• Do not reuse front oil seal.

• When installing, do not incline front oil seal.

• Apply rear differential gear oil onto front oil seal lip.

3. Install wave washer to electric controlled coupling.

4. 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 surfaces. Also remove

any moisture, rear differential gear oil, or foreign material

adhering to the surfaces.

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

in).

5. 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 front oil seal.

JSDIA3057ZZ

Tool number : ST30720000 (J-25405)

JSDIA3058ZZ

JSDIA3059ZZ

JSDIA3060ZZ