I remember reading you can use other centres like e28 e36 actually all the 6cyl diff centres are the same size untill some time in the mid 90's except M cars or something, so they'll fit in our cases...
ill see if i can find it

I had a small case 3.9 diff from a 318 in my 325i for a few months, held up ok, only problem was the open centre. I currently have a 3.6 diff which i have welded up from a 83 318i is seems to be the goods with no signs of letting go yet. busted a CV with in a week of having it in though :| So they s...

looks very clean, is it henna?