Originally Posted by shadow85

Interesting, this was the kind of amswer I was looking for. Someone who also had the Quaife in the past, and I agree with you, totally unpredictable and annoying. I have 305/30R19 RE71R on the rears.

Are you able to tell me when did you buy the OSG, and what is the part number for it?

There seems to be a heap of different versions/part numbers for the OSG diff for 370Z.

If I order one, there is a 3-4 month wait from local OSG Dealers here in Australia. But RHD Japan website:

https://www.rhdjapan.com/os-giken-su...3-z34-v35.html

says they have one in stock, but from their product page it looks totally different and has a different part no. than the current on the OSG official page:

https://osgikenusa.com/products/ns11...30273207435347