Infiniti FX35, FX50 (S51). Manual - part 581

DIFFERENTIAL ASSEMBLY

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< UNIT DISASSEMBLY AND ASSEMBLY >

[FRONT FINAL DRIVE: F160A]

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Disassembly

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1.

Drain gear oil, if necessary.

2.

Remove carrier cover mounting bolts.

3.

Remove carrier cover to insert the seal cutter (A) [SST:
KV10111100 (J-37228)] between gear carrier and carrier cover.

CAUTION:

• Never damage the mating surface.
• Never insert flat-bladed screwdriver, this may damage the

mating surface.

4.

Remove side retainer.

5.

Remove side bearing adjusting shim.

6.

Remove O-ring from side retainer.

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)

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.

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DIFFERENTIAL ASSEMBLY

7.

Remove differential case assembly from gear carrier.

8.

Remove side oil seal (right side) from side retainer.

9.

Remove side bearing outer race with puller (A) [SST:
KV381054S0 (J-34286)].

10. Remove O-ring from gear carrier.
11. Remove side oil seal (left side) from gear carrier.

12. Remove side bearing outer race with puller (A) [SST:

KV381054S0 (J-34286)].

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DIFFERENTIAL ASSEMBLY

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[FRONT FINAL DRIVE: F160A]

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13. Remove side bearing inner race.

To prevent damage to bearing, engage puller jaws in groove
(

).

CAUTION:

• To prevent damage to the side bearing and drive gear,

place copper plates between these parts and vise.

• It is not necessary to remove side bearing inner race

except if it is replaced.

14. For proper reinstallation, paint matching marks on one differen-

tial case assembly.

CAUTION:

For matching marks, use paint. Never damage differential
case and drive gear.

15. Remove drive gear mounting bolts.

16. Tap drive gear off differential case assembly with a soft hammer.

CAUTION:

Tap evenly all around to keep drive gear from bending.

17. Remove lock pin of pinion mate shaft with a punch from drive

gear side.

18. Remove pinion mate shaft.

A: Puller [SST: ST33051001 (J-22888-20)]

B: Base [SST: ST33061000 (J-8107-2)]

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[FRONT FINAL DRIVE: F160A]

DIFFERENTIAL ASSEMBLY

19. Turn pinion mate gear, then remove pinion mate gears, pinion

mate thrust washers, side gears and side gear thrust washers
from differential case.

Assembly

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1.

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.

2.

Install side gears and thrust washers into differential case.

CAUTION:

• Never reuse circular clip.
• Make sure that the circular clip is installed to side gear

(side retainer side).

3.

Align 2 pinion mate gears in diagonally opposite positions, then
rotate and install them into differential case after installing thrust
washer to pinion mate gear.

4.

Align the lock pin holes on differential case with shaft, and install
pinion mate shaft.

5.

Measure side gear end play. If necessary, select the appropriate side gear thrust washers.

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