I just got a Bellhousing (P/N 3858403 ) off Ebay for $52 shipped. It is crack free and rings like a bell so it's good. Problem I'm having trouble understanding is, by Novaks description I have to drill and tap a new hole to match the Ford trans, and the other 3 holes will line up with a little work to the trans.. The bellhousing has thick castings where the bolt holes are and they are only about as big as the bolt holes are, and if I drill outside of those castings, it will be in thin aluminum.. Do I need a different bell or could I tap it, then use a stud and back it with a nut and a washer?