MalteseFalcon

Has anyone heard of fitting a BMW M3 Diff into a 2wd? Well I heard that someone did it and it's really stronger than than the Ford unit, it need some few modifications but it's worth the trouble. Now I don't know much about BMW's so when I asked for an M3 diff with a 3.7/ 3.9 ratio I didn't have any answers. The one that I found had a ratio of 3.2 which is extremely high for the quarter mile. Any one knows something? Thanks