Welcome to the board. Here is one thread that talked a little bit about it.
http://67-72chevytrucks.com/vboard/s....php?p=2897878
On an AD I think the frame width is the problem unless you want to keep the truck at stock height and run skinny tires. Even with the S10 swaps if you want to lay it on the steps you will end up with the tranny hump and bed floor raised and the frame C notched. It all depends on your skill level.