What is a good diff for a 4000cs when I go rwd?

[slampiece]

is there a strong rear dif I can use in my 4000 that has LSD? I'm going to be swapping in a Nissan sr20 and converting to rwd pretty soon and I'm trying to get everything for it now. Just hoping I don't have to make a custom rear end too because its already going to be a lot of work

[EUR Mechaniker]

im assuming you want IRS in which case BMW 3 series lsd (e30 ish) are cheap and usually fairly available... 4 bolt driveshaft and 6 bolt axle shaft inner cups...

[90quattrocoupe]

You can stay with the stock diff. A lot of guys are running high HP, through those diffs. They have more problems with the axles, than the diffs.

Greg