B Body 8.75 in a an body

Looking for someone that has put a B-Body 8.75 into a Dart or Valiant style A body. I am looking to know all the work needed to put one in. I heard all the needs be done is to move spring perches. Also what backspace is needed to make the tires fit inside the wheelwells comfortably? I looked through the forum but didnt find the answers I was needing.


Thanks
Jeff