One more time. Back wheel backspacing on Dart

If you use a rearend housing and axles out of a 65-66 b body you can use a 8" wheel with 5 1/2" back spacing without moving the leaf springs. There was an article about it in a magizine quite a few years ago (early 90's?) I coppied that when I did my 70, but I am not certain of the year of the rear I used (I was told it was from a 65-66 b body, but I think someone lied to me cause I still had to roll the lip (actually I used a cut off wheel and cut it back to about an 1/8") and the tire still JUST BARELY rubbed the outer well enough to scrub the letters off the tires I was running. I also had a set of wheels custom made from stockton for the purpose but mine were just a stock steel wheel design (sleeper mode)