Hello everyone. I am wondering if anyone has swapped a diesel into a 4th gen gas 2500/3500? Even swap in a dumb old 12 valve into a 4th gen?. There is always the odd gas truck out there with low miles and a tired or blown up hemi in it that is very reasonably priced. Is there major differences in the drivetrain in them? It used to be a not too difficult in the older models. Thank you.