By the way, this is the same system that is in Eddie Krawiec's '66 Nova. Just search his last name on the Super Chevy site and you can find the whole build. But for now, here's the backhalf.
Part 1 -
http://www.superchevy.com/how-to/cha...-rear-chassis/
Part 2 -
http://www.superchevy.com/how-to/eng...rearend-build/