However it needs new seals. Any of you on this thread know where to source them?

Remember that the PGC10 and KPGC10 Skyline GT-Rs, and the PS30 Fairlady Z432 ( and PS30-SB Fairlady Z432-R ) all used the R192 diff as standard equipment. The R192 is virtually identical to your R190.

Part number for the side flange oil seals was 38342-A0100.

RUBBER SOUL still had them in stock just a few months ago: http://www.rubber-soul.net/

Excellent! Thanks Alan!

Would you know if the front seal is the same as that in an R180? That is the one, I am told, that has failed.

I've just sent an email to Rubber Soul (btw that is my 2nd fav next to Revolver ). I also have a friend in Osaka so it is a perfect link.

R192 ( & R190 ) pinion oil seal part number was 38332-A0100, whilst R180 pinion oil seal part number ( from the same GC10 series parts list ) was 38332-21100, so certainly not the same part and - without having both in front of me, so take this with a pinch of salt - I would have thought the R192 / R190 seal would be slightly bigger than the R180. Pretty much everything else on the R192/R190 is bigger than the R180 anyway.....

Useless diversions department: See if you can spot my KPGC10 on the Rubber Soul website. Previous owner my good friend Dr Shimizu is a Kyoto resident, and always had his GT-Rs looked after by Rubber Soul, Revolver, Help! and Sergeant et al in the Osaka area. There's a lot of their work in the car, and some quite special parts.

Alan T.

Thanks again Alan,

For the archives here are photos of the beastie before the owner/retired racer sold it to me along with a 1 piece Gnose copy.

Edited August 4, 201113 yr by Blue

Exploded View R190 Differential

R190 Parts List

R190 LSD

3rd Party back cover with extra capacity and cooling fins

Photos from the net showing larger side flange on "pumpkin"

Elusive bearing part: NTN 323/28C Nissan 09022-0010P

All bearing part numbers:

Part 23: Taper Roller Bearing 38120-61000 (Timken 32307)

Part 24: Pinion Bearing Front 38140-A0100

Part 25: Pilot Bearing Front 38335-A0100

Part 32: Taper Roller Bearing Side 09022-0012P

Part 38: Side Flange Pilot Bearing 38440-A0100 (Timken 107WB)

Recommended Rebuild Shop: http://www.gounitrax.com/

Edited August 6, 201113 yr by Blue

There are 2 of those hard to come by R190 LSD side bearings part#09022-0012P on eBay: 1968 1973 Datsun Bre 510 240Z R190 LSD Differential Bearings nismo RARE | eBay