The other FC differential (56k warning)

[Whizbang]

I got something interesting last week.









Assuming I made the right purchase, this is the Torsen diff that the Infini IV came with.

I need to check if this is the real thing first and then find out if it's broken or not. I tried fitting some dowels into the diff and turning them and it seems to be alright. One goes clockwise when the other goes counter. Doesn't seem like there's much play either.

I've spun the side bearings a couple times and it seems there is a bit more resistance compared to other diffs I've played with. I suspect that it is because the differential is dry as bone with no oil anywhere. Makes sense if it was shipped from Japan.

From what I've seen and read, it looks like I will need the S4 T2 half shafts to complete the swap. Is there anything else I need? And should I get the earlier model (longer) shafts or the later S4 (shorter) shafts?

If anybody has any ofther tips, let me know.

Thank you.

[firzen]

I got something interesting last week.









Assuming I made the right purchase, this is the Torsen diff that the Infini IV came with.

I need to check if this is the real thing first and then find out if it's broken or not. I tried fitting some dowels into the diff and turning them and it seems to be alright. One goes clockwise when the other goes counter. Doesn't seem like there's much play either.

I've spun the side bearings a couple times and it seems there is a bit more resistance compared to other diffs I've played with. I suspect that it is because the differential is dry as bone with no oil anywhere. Makes sense if it was shipped from Japan.

From what I've seen and read, it looks like I will need the S4 T2 half shafts to complete the swap. Is there anything else I need? And should I get the earlier model (longer) shafts or the later S4 (shorter) shafts?

If anybody has any ofther tips, let me know.

Thank you.