zf transmission, so what diff?

[vr4boy]

i was at 3.2k rpm at 65mph w/ a 3.25lsd on my e30m3 s52 using a zf.
switched over to a 2.93lsd and pretty happy with it now.

FIXED:-)

[e30s52]

I will check saturday I dont have the car with me right now.

[jahnaboi]

What rpm are you at e30s52 with your 3.25 at 80 mph?

[e30s52]

I have 3.25lsd for my s52. Its the same ratio as the getrage with 4.10lsd rear end.

[evil_twin]

Alright, I have a zf transmission, so what diff should I be running? I searched and found what people get for getrags, but I know the gearing in the zf is different. Right now I'm running a 3.73 and it just feels like the gear is too high. Anybody know what would be the best choice? Thanks,