I did a 9" Ford in my 55 and what I liked about it is it was 1" narrower than the stock rearend so no narrowing/cutting. The pumpkin drops out easily for changing and you can find the gear ratio for your application. I chose the 3.50 but I am running a 327 and T350 setup. You can get a housing from a 60-70's F100 pickup or some ford cars. I got lucky and found a posi.
