20 x 12 wheels ?

[timgco]

that wider wheel will make a wider footprint. I think the truck will make driving the truck a little more effort. I'd stick with the 10" or even go to 9" if possible.

I'm running the 13.50 wide procomp tire on a 9" rim and was glas I didn;t go to 10". With a 20" tire/ 10" wheel, and less sidewall than I run, I'd think it would be fine on and off the road.