Exactly which bearings are needed to rebuild an R200 Diff?

[Healeyalt]

I see in the Black Dragon catalog for the R200 they list the side carrier bearings (2), the front pinion bearing, and the rear pinion bearing. However, they don't list a pilot bearing like they do for the R180. Doesn't the R200 have a pilot bearing?

I'd really appreciate it If someone who has done a rebuild on the R200 could verify and list for me exactly which bearings are needed.

Also, if I knew exaclty which to order it looks like I could save quite a bit of money through Rock Auto for example instead of buying a rebuild kit.

Gary

[240260280z]

Datsun 240Z/260Z/280Z Differential Gear, Pinion & Cover (R200)

1 ASSY-FINAL DRIVE 37/

38300-N3200 MANUAL 2+2 SEATER - 7408 1

ASSY-DINAL DRIVE 37/

38300-N3205 MANUAL 2+2 SEATER 7409 - 7411 1

ASSY-FINAL DRIVE 39/

38300-N3305 7508 - 1

ASSY-DINAL DRIVE 39/

38300-N3306 7412 - 7507 1

2 COMP-HOUSING FINAL D

38310-N3100 - 1

3 BOLT-BEARING CAP (M1

38315-N3100 - 4

4 SERVICE FILE COVER-REAR

38351-N3100 - 1

5 PLUG-FILLER

38357-E4600 - 1

6 ASSY-PLUG DRAIN

32103-U8400 - 1

7 STUD-REAR COVER

38354-N3100 - 2

8 WASHER-SPECIAL,F

54474-N3100 - 2

9 NUT-SELF LOCKING

08912-84410 - 2

10 BREATHER

38352-78600 - 1

11 PACKING-REAR COVER

38353-N3100 - 1

12 BOLT-HEX WITH WASHER

08120-82562 - 8

13 SET-HYPOID GEAR 37/1

38100-N3200 MANUAL 2+2 SEATER - 1

SET-HYPOID GERA 37/1

38100-N3200 MANUAL 2+2 SEATER - 7408 1

SET-HYPOID GEAR 37/1

38100-N3205 MANUAL 2+2 SEATER 7409 - 7411 1

SET-HYPOID GEAR 39/1

38100-N3305 7412 - 1

14 BOLT-DRIVE GEAR

38102-N3100 - 10

15 ASSY-DIFF CASE & GEA

38420-N3100 - 1

16 CASE-DIFF

38421-N3100 - 1

17 ASSY-SIDE GEAR

38422-N3100 - 2

18 CIRCLIP-SIDE YOKE

38225-N3100 - 2

19 MATE-PINION DIFF BEV

38425-N3100 - 2

20 WASHER-THRUST SIDE (

38424-N3100 - 2

38424-N3101 - 2

38424-N3102 - 2

21 SHAFT-PINION MALE

38427-N3101 - 1

22 PIN-LOCK MATE SHAFT

38428-U1500 - 1

23 ASSY-BEARING DIFF SI

38440-N3100 - 2

24 WASHER-ADJUST DIFF S

38453-N3100 - 2

38453-N3101 - 2

38453-N3102 - 2

38453-N3103 - 2

38453-N3104 - 2

38453-N3105 - 2

38453-N3106 - 2

38453-N3107 - 2

38453-N3108 - 2

38453-N3109 - 2

38453-N3110 - 2

38453-N3111 - 2

38453-N3112 - 2

25 SPACER-DIFF SIDE

38454-N3100 - 1

26 ASSY-FLANGE SIDE RH

38220-N3100 - 1

27 ASSY-FLANGE SIDE LH

38230-N3100 - 1

28 SEAL-OIL SIDE FLANGE

38342-N3100 - 2

29 ASSY-BEARING PINION

38120-61000 - 1

30 ASSY-BEARING PINION

38120-13201 - 1

31 SPACER-PINION PILOT

38169-N3100 - 1

32 ASSY-BEARING BALL JO

38335-N3100 - 7408 1

ASSY-BEARING BALL PI

38335-N3200 7409 - 1

33 SPACER-PINION BEARIN

38165-61001 - 1

38165-B4002 - 1

38165-B4003 - 1

38165-B4004 - 1

38166-61001 - 1

34 WASHER-ADJUST PINION

38125-61001 - 1

38126-61001 - 1

38127-61001 - 1

38128-61001 - 1

38129-61001 - 1

38130-61001 - 1

38131-61001 - 1

38132-61001 - 1

38133-61001 - 1

38134-61001 - 1

38135-61001 - 1

38136-61001 - 1

38137-61001 - 1

38138-61001 - 1

38139-61001 - 1

35 WASHER-ADJUST DRIVE

38154-B4017 - 1

38154-B4018 - 1

38154-B4019 - 1

38154-B4020 - 1

38154-E4600 - 1

38154-E4601 - 1

38154-E4602 - 1

38154-E4603 - 1

38154-E4604 - 1

38154-E4605 - 1

38154-E4606 - 1

38154-E4607 - 1

38154-E4608 - 1

38154-E4609 - 1

38154-E4610 - 1

38154-E4611 - 1

38154-E4612 - 1

38154-E4613 - 1

38154-E4614 - 1

38154-E4615 - 1

38453-28500 - 1

38454-28500 - 1

36 SEAL-OIL DRIVE PINIO

38189-N3100 - 1

37 ASSY-FLANGE COMPANIO

38210-N3100 - 1

38210-Y0800 7412 - 7507 1

38 NUT-DRIVE PINION

38216-N3100 - 1

[Healeyalt]

Thank you Blue. Like the R180, it does look like there are 3 bearings associated with the pinion in the R200 but for whatever reason Black Dragon doesn't show the front ball joint bearing. And that is probably the one thats making the howling (whinning) noise.

Gary

[John Coffey]

In most cases you don't need to replace the bearings in an R180 or R200. They are pretty sturdy and if the diff has had the fluid changed a couple times in its lifetime the bearings are probably still good.

[Healeyalt]

John, might the howling (whinning) noises most likily becoming from the contact pattern for the ring/pinion gears being off or ?

Gary

[EuroDat]

Incorrect pinion and crown wheel contact is the main cause of diff whine. If bearings are gone than the pinion and crown will need work as well. Might be better off looking for a new diff.

You can use "bearing blue" or the red stuff, can't think of its name right now, to check the contact patern and refer to fsm. Its a lot of hassle getting it right if you don't have the right special tools to measure pinion height etc. A diff specialist would have a better chance getting it adjusted.

Chas

[Healeyalt]

I wasn't going to try to rebuild it myself. I found a Trany/diff specialist who say he can do it. However, I was going to order all the parts myself (eg bearings, seals, gaskets) hoping to get good quality at a reasonable price and then just pay him for all the labor.

Gary

[EuroDat]

I dont know what quality bearings BD use, but all the bearing are still available through Nissan except the pilot bearing. They would have to measure it when they remove it or if its in good condition reuse it.

The four available bearings will cost about $230 IIRC.

If you are thinking of a rebuild, this would be probably the minimum:

Side bearings: 38440-N3100 (2)

Pilot bearing: 38335-N3100 NLA

Pinion bearing: 38120-13201 (front)

Pinion bearing : 38120-61000 (back)

Front seal: 38189-N3100

Pinion shaft nut: 38216-N3100

Side seals: 38342-N3100 (2)

Diff cover gasket: 38352-N3100

Breather: 38352-78600

Chas

[Healeyalt]

Hi Chas. I googled each of those part numbers and they all see to be available, even the Pilot Bearing, from a couple of different distributors at reasonal prices. For example;

Axle Differential Bearing | Genuine Nissan | 38440-N3111

Thanks for listing them for me

Gary

[Yarb]

Can anyone recommend a supplier for a quality rebuild kit for a r200?

[240260280]

1 hour ago, Yarb said:

Can anyone recommend a supplier for a quality rebuild kit for a r200?

https://whiteheadperformance.com/new-shipment-of-nissan-r200-r180-lsd-open-diffs-datsun-240z-260z-280z-280z-300zx-whitehead-performance/

[Yarb]

Thanks Hoover, I’ll check them out.