Infiniti FX35, FX50 (S51). Manual - part 584

DIFFERENTIAL ASSEMBLY

DLN-171

< UNIT DISASSEMBLY AND ASSEMBLY >

[FRONT FINAL DRIVE: F160A]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

• If the tooth contact is near the face (face contact), or near the

heel (heel contact), thicken pinion height adjusting washers to
move drive pinion closer to drive gear.

• If the tooth contact is near the flank (flank contact), or near the

toe (toe contact), thin pinion height adjusting washers to move
drive pinion farther from drive gear.

BACKLASH

Before inspection and adjustment, drain gear oil.

1.

Remove carrier cover. Refer to 

DLN-159, "Disassembly"

.

2.

Fit a dial indicator to the drive gear face to measure the back-
lash.

• If the backlash is outside of the specified value, change the

thickness of side bearing adjusting washer.

Inspection After Disassembly

INFOID:0000000005249205

DRIVE GEAR AND DRIVE PINION

• Clean up the disassembled parts.
• If the gear teeth never mesh or line-up correctly, determine the cause and adjust or replace as necessary.
• If the gears are worn, cracked, damaged, pitted or chipped (by friction) noticeably, replace with new drive

gear and drive pinion as a set.

BEARING

• Clean up the disassembled parts.
• If any chipped (by friction), pitted, worn, rusted or scratched marks, or unusual noise from the bearing is

observed, replace as a bearing assembly (as a new set).

SIDE GEAR AND PINION MATE GEAR

• Clean up the disassembled parts.
• If any cracks or damage on the surface of the tooth is found, replace.

PDIA0440E

PDIA0441E

Standard

Backlash

: Refer to 

DLN-182, "Back-

lash"

.

When the backlash is large:

Decrease side bearing adjusting washer thickness.

When the backlash is small:

Increase side bearing adjusting washer thickness.

SDIA0009J

DLN-172

< UNIT DISASSEMBLY AND ASSEMBLY >

[FRONT FINAL DRIVE: F160A]

DIFFERENTIAL ASSEMBLY

• If any worn or chipped mark on the contact sides of the thrust washer is found, replace.

SIDE GEAR THRUST WASHER AND PINION MATE THRUST WASHER

• Clean up the disassembled parts.
• If it is chipped (by friction), damaged, or unusually worn, replace.

OIL SEAL

• Whenever disassembled, replace.
• If wear, deterioration of adherence (sealing force lips), or damage is detected on the lips, replace them.

DIFFERENTIAL CASE

• Clean up the disassembled parts.
• If any wear or crack on the contact sides of the differential case is found, replace.

COMPANION FLANGE

• Clean up the disassembled parts.
• If any chipped mark [about 0.1 mm, (0.004 in)] or other damage on the contact sides of the lips of the com-

panion flange is found, replace.

DRIVE PINION

DLN-173

< UNIT DISASSEMBLY AND ASSEMBLY >

[FRONT FINAL DRIVE: F160A]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

DRIVE PINION

Exploded View

INFOID:0000000005249206

VQ35HR

JSDIA0020GB

1.

Drive pinion lock nut

2.

Companion flange

3.

Front oil seal 

4.

Pinion front bearing

5.

Drive pinion bearing adjusting wash-
er

6.

Drive pinion adjusting washer

7.

Gear carrier

8.

Pinion rear bearing

9.

Pinion height adjusting washer 

10. Drive pinion

11.

Drive gear

12. Side oil seal (right side)

13. Side retainer

14. O-ring

15. Side bearing adjusting shim

16. Side bearing

17. Differential case

18. Breather connector 

19. Dowel pin

20. Filler plug

21. Drain plug

22. Gasket

23. Carrier cover

24. Gear oil defense

25. Side gear thrust washer

26. Side gear

27. Circular clip

28. Pinion mate thrust washer

29. Pinion mate gear

30. Pinion mate shaft

31. Lock pin

32. Side bearing adjusting washer

33. Side oil seal (left side)

DLN-174

< UNIT DISASSEMBLY AND ASSEMBLY >

[FRONT FINAL DRIVE: F160A]

DRIVE PINION

VK50VE

34. Side shaft bearing

35. Extension tube retainer 

36. Side shaft oil seal

37. Dust seal

38. Side shaft

A: 

Oil seal lip

B:

Screw hole

: Apply gear oil.

: Apply anti-corrosion oil.

: Apply multi-purpose grease.

: Apply Genuine Silicone RTV or equivalent. Refer to 

GI-16, "Recommended Chemical Products and Sealants"

.

:

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

GI-16, "Recommended Chemical Prod-

ucts and Sealants"

.

Refer to 

GI-4, "Components"

 for symbols not described above.

JPDID0225GB

1.

Drive pinion lock nut

2.

Companion flange

3.

Front oil seal 

4.

Pinion front bearing

5.

Drive pinion bearing adjusting wash-
er

6.

Drive pinion adjusting washer

7.

Gear carrier

8.

Pinion rear bearing

9.

Pinion height adjusting washer