Just as info....on my 52 panel I used the same rear housing and axles. I pulled the torque tube assembly out and used one from a 59 pickup....and I think up to 62 the "pumpkin" will fit right in place of the torque tube assembly. I ran a V8 with a 700R4. Yes, I had to find a driveshaft and have it cut to length. Had a couple guys give me driveshafts and I opted to use an aluminum one that was give to me and lighter.
I drove the panel all over country including K.C. reunion and the Homecoming.
..and it allowed me to keep all 6 lugs.