Thanks a bunch guys. We found some axles and a auburn posi from a 90's impala ss. Gonna use that. We ditched the thumper cam idea and he's gonna get something different. He is looking at an isky cam.
By the way it is an 8.5 10 bolt. I welded the tubes solid to the center housing to strengthin it up. Also welded 4 small braces to each corner of center housing to tubes. Thanks again guys.