IMO, Ford should put 6000# springs as a standard spring on “oil burner” F-350. Specially with a CC. Before the swap, the axle would hit the bump stops on the smallest bump. Honestly, I don’t feel much difference otherwise. Hope I don’t regret not putting on 6500# springs.
I’d like to see what you come up with for the Rotopax mount. Thinking of doing something similar.
I did not do the spring swap myself. I had total knee replacement a little over a year ago and my days of kneeling on my right knee are over. Somehow, that got left out of the wonders of knee replacement the surgeon waxed on about before I had it done.:) Plus, it was winter and the truck won’t fit in the garage. It was $140 labor to have it done.