Rear end

Hi how's everyone doing today?
I'm interested in upgrading my rear end, which way would be the easiest to upgrade to an cheapest? I don't mind doing modifications an what not , I have a 72 duster with a 5.9 Magnum swap an transmission is a 904, this would be all new to me ,I'm learning as I got

IMG_20240309_152412.jpg
Author: admin