can anyone comfirm if this is a medium case diff

[iwantspeed]

Hello I would like some assistance confirm that this a 3.73 limited slip medium case

http://e28-535i.com/upload/LSDReplacement.pdf

http://www.autoatlanta.com/porsche-parts/9442-89-91/305-05.php

http://tis.spaghetticoder.org/s/view.pl?2/08/69

http://forums.bimmerforums.com/forum/showthread.php?t=1115194

[MR 325]

Well, it's a medium case diff and it has the right tag. That's about all I can say from pictures!

[Jaxx_]

I would say yes. the flanges say medium case, as do the drain holes. small case diffs have longer output flange space and the drain and fill plugs are not inline.