Got the axle all back together and the truck back on all 4's. It should tollerate the 38's pretty well now.
Next up is some work to the exo to make it a little stouter and do something with the low hanging gas tank.
I know it's a little ghetto but, iş there any blatant safety issue with pulling the stock tank, spinning it 90*, then straping it down in the front of the bed under the cage. It is in great shape, would fit perfect, would be easy to plumb, and is already setup for the truck.