E30 Zone

This might be a really silly question, but will any other diffs fit in my cab? the diff thats in it at the mo has a bit of a whine to it, (more so when its warm) and its getting a bit too much for me on a long drive . A friend of a friend once told me that z3's diffs are similar, (not quite sure bout that one??) so it got me thinking about what i could get hold of as a replacement... i mean, a LSD would be nice, but the only ones i've seen have been the best part of £300, and theres still no way of telling if its gonna whine/be sound until its back in the car, so ebays well out of the question . The thing is, if there are other diffs which will fit, it opens a few more doors in the sense that ive got a better chance of getting hold of one a bit nearer to home... any help, advice would be much appreciated. Cheers, Guy.

Don't know about Z3, but if I recall correctly E36 Compact diffs should fit on the E30. And of course most of early E34 ones.

I have bought two LSDs off Ebay, first one whined at 70mph. The second one, which I'm running now is perfect, like a whisper. Even sold the whining one for a reasonable price, openly telling about the whine to the buyer. That tells something about the LSD market

If buying an LSD, remember to use proper LSD oil like Mobil Gearlube VS500!

I cant wait to get my lsd on tomorrow i just got a 3.91 for my cab

Thanks for the help, i'll be keeping my eyes open for one... fingers crossed! still a bit unsure about ebay mind you .

Guy.