I'm sorry guys...I can't find a thread I was in asking about a differential for my '95 525. I think I'm just interested in a 3.46. LS would be nice, but not required.
Paul was in the thread with strong recommendations of similar flange sizes...I can't find the thread.
I made some notes on my desk blotter...
Medium case 3:46 from e34 535 manual
3:73 from e34 525 manual
(would be the best plug and play without flange work)
I think I have one, a 3.46 (or was it 3.64?) LSD for an E34. I'm on vacation right now and won't be back until Wednesday. It's at Darin's house in San Diego...send me a PM if you're interested.
The output flanges swap very easily. The input takes a little more work / finesse, but still pretty simple (even for an amateur). I had to swap both when I put the 3.46 LSD in my touring, but it was well worth the labor.