Infiniti G37 Coupe. Manual - part 439

DLN-70

< ON-VEHICLE REPAIR >

[REAR FINAL DRIVE: R200V]

FRONT OIL SEAL

ON-VEHICLE REPAIR

FRONT OIL SEAL

M/T

M/T : Exploded View

INFOID:0000000001714260

1.

Drive pinion lock nut

2.

Companion flange

3.

Front oil seal

4.

Pinion front bearing

5.

Gear carrier

6.

Side oil seal

7.

Side flange

8.

Collapsible spacer

9.

Pinion rear bearing

10. Pinion height adjusting washer

11.

Drive pinion

12. Side bearing adjusting washer

13. Side bearing

14. Drive gear

15. Differential case B

16. Side gear thrust washer

17. Circular clip

18. Side gear

19. Pinion mate shaft

20. Pinion mate thrust washer

21. Pinion mate gear

22. Viscous coupling

23. Differential case A

24. Bearing cap

25. Filler plug

26. Gasket

27. Rear cover

28. Drain plug

A.

Oil seal lip

B.

Screw hole

C.

After tightening the bolts to the spec-
ified torque, tighten the bolts addi-
tionally by turning the bolts 31 to 36 
degrees.

:

Apply gear oil.

:

Apply anti-corrosion oil.

:

Apply Genuine Silicone RTV or equivalent. Refer to 

GI-15, "Recommended Chemical Products and Sealants"

.

JSDIA0037GB

FRONT OIL SEAL

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< ON-VEHICLE REPAIR >

[REAR FINAL DRIVE: R200V]

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M/T : Removal and Installation

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REMOVAL

CAUTION:

Verify identification stamp of replacement frequency put in the lower part of gear carrier to determine
replacement for collapsible spacer when replacing front oil seal. Refer to “Identification stamp of
replacement frequency of front oil seal”. If collapsible spacer replacement is necessary, remove final
drive assembly and disassemble it to replace front oil seal and collapsible spacer. Refer to 

DLN-88,

"M/T : Removal and Installation"

 and 

DLN-92, "M/T : Disassembly"

.

NOTE:
The reuse of collapsible spacer is prohibited in principle. However, it is reusable on a one-time basis
only in cases when replacing front oil seal.

Identification stamp of replacement frequency of front oil seal

• The diagonally shaded area in the figure shows stamping point for

replacement frequency of front oil seal.

• The following table shows if collapsible spacer replacement is

needed before replacing front oil seal.
When collapsible spacer replacement is required, disassemble
final drive assembly to replace collapsible spacer and front oil seal.
Refer to 

DLN-92, "M/T : Disassembly"

.

CAUTION:

Make a stamping after replacing front oil seal.

• After replacing front oil seal, make a stamping on the stamping point in accordance with the table below in

order to identify replacement frequency.

CAUTION:

Make a stamping made from left to right.

1.

Drain gear oil. Refer to 

DLN-69, "Draining"

.

2.

Make a judgment if a collapsible spacer replacement is required.

3.

Remove center muffler with a power tool. Refer to 

EX-5, "Exploded View"

.

4.

Remove rear wheel sensor. Refer to 

BRC-100, "Exploded View"

.

5.

Remove drive shaft from final drive. Then suspend it by wire, etc. Refer to 

RAX-10, "Exploded View"

.

:

Apply Genuine High Strength Thread Locking Sealant or equivalent. Refer to 

GI-15, "Recommended Chemical Products 

and Sealants"

.

Refer to 

GI-4, "Components"

 for symbols not described on the above.

Stamp

collapsible spacer replacement

No stamp

Not required

“0” or “0” on the far right of stamp

Required

“01” or “1” on the far right of stamp

Not required

JSDIA0108ZZ

Stamp before stamping

Stamping on the far right

Stamping

No stamp

0

0

“0”
(Front oil seal was replaced once.)

1

01

“01”
(Collapsible spacer and front oil seal were replaced last time.)

0

010

“0” is on the far right.
(Only front oil seal was replaced last time.)

1

...01

“1” is on the far right.
(Collapsible spacer and front oil seal were replaced last time.)

0

...010

DLN-72

< ON-VEHICLE REPAIR >

[REAR FINAL DRIVE: R200V]

FRONT OIL SEAL

6.

Install attachment (A) [SST: KV40104100 (

—

)] to side

flange, and then pull out the side flange with the sliding hammer
(B) [SST: ST36230000 (J-25840-A)].
NOTE:
Circular clip installation position: Final drive side

7.

Remove propeller shaft. Refer to 

DLN-7, "Exploded View"

.

8.

Measure the total preload with the preload gauge (A) [SST:
ST3127S000 (J-25765-A)].
NOTE:
Record the preload measurement.

9.

Put matching mark (B) on the end of the drive pinion. The
matching mark (B) should be in line with the matching mark (A)
on companion flange (1).

CAUTION:

For matching mark, use paint. Never damage companion
flange and drive pinion.
NOTE:
The matching mark (A) on the final drive companion flange (1)
indicates the maximum vertical runout position.

10. Remove drive pinion lock nut using the flange wrench.

11. Remove companion flange using a puller.

JSDIA0105ZZ

PDIA1006E

JSDIA0038ZZ

JSDIA0039ZZ

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FRONT OIL SEAL

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< ON-VEHICLE REPAIR >

[REAR FINAL DRIVE: R200V]

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12. Remove front oil seal using the puller (A) [SST: KV381054S0 (J-

34286)].

INSTALLATION

1.

Apply multi-purpose grease to front oil seal lips.

2.

Install front oil seal using the drift (A) [SST: ST30720000 (J-
25405)] as shown in figure.

CAUTION:

• Never reuse oil seal.
• Never incline oil seal when installing.

3.

Align the matching mark (B) of drive pinion with the matching
mark (A) of companion flange (1), and then install the compan-
ion flange (1).

PDIA0980E

PDIA0752J

JSDIA0038ZZ