I have put a 9 inch Ford from a 1974 Torino in my 1952 AD. The width is approx 62 inches, the same as a 64-77 Chevelle. I cut off all the brackets which were for a coil spring set up and purchased new leaf spring pads and welded them on. I'm still working on my truck but I am thinking about upgrading to a to the 1997 8.8" Ford Explorer with disc brakes which has a 31 spline axle and the factory gear ratio is 3.73 and a lot came with a limited slip. They can be purchased complete for a lot less than converting a 9 inch to similar specs. I got the Torino for free and spent approx $300 for new drums and brakes from Currie Enterprises. I still need a better gear ratio and a limited slip but that cost is going to be north of $600,00 for parts. The 8.8 is also approx 59.75 inch width which will help with tire clearance. I believe that a stock AD rear is approx 60 inches but not 100% sure. There are some sites that have that info and I'll see if I can find it. Also there are many different 9" Ford widths from different Ford vehicles that would approx the Chevy rear but are going to be hard to find. Good luck
