That's true, them bogger boys have things a bit different that we rock crawlers. Still, to have huge tires like that, just to get mud on your roof, seems a bit strange to me.
If I was going to do that just for the bogging action, I think I'd save the extra dough for the tires, and not spend it on the coils, track bar and whatnot. A simpler solution for that would be the leaf spring deal there. Less articulation (or some would say

) and a lot less complicated. But, you'll still have to convert your steering to a regular gearbox. You'd end up converting your 2005 back to a 1978'ish truck, with the ride to match.
And just to run bigger tires.