Originally Posted by
stevieturbo
Been considering similar myself recently as I'd prefer to get rid of my live axle. Although a Granada is seemingly rather narrow compared to a lot of modern stuff. 1M might be an option as it's the narrowest of the lot.
I thought a 1M used a std width E92 M3 rear end? I have flange to flange measurements if you need them. I have two rear diffs to choose from 3.1 and 3.6 , there are others too