The extension housing came off of this truck. The SB tranny had a fresh rebuild on it so we took all the guts and extension housing and put them in a BB 727 housing.
As I stated the tranny and drivers side mount all line up fine. Just the pass side mount is being stretched back. I've done a few BB swaps and have never had this problem. I've compared the pass bracket with others and don't see any difference. Can't find any damage to the frame from being in a wreck or anything. Funny thing is that I took this motor out of a 2wd truck a few years ago even though it is a 68 440 probably original from a C-body.