I used an early nova rear end in mine 1976 I believe, mounting/spring track is the same, left about a 1/2 inch gap on either side of the springs while sitting in the perch, removed smallest spring to fit depth of spring perch, cost at the time 150.00 and I had to remove it. Also used relocating blocks to kick rear end back about an inch to center wheels in well, needed longer u-bolts, purchased at any autozone or who ever is in your area
