have wheel spacers, there is some clearance between the tires when i'm on the street. in the offroading pics i was aired down to 20psi to allow some flex. when your just shy of 8000 pounds 20psi makes for some decent flex lol. add on the extra weight from the cummins and the nv4500 figure i'm around 8300-8600 once the swap is done, as well as a heavy duty bumper/grill guard along with rock sliders down the road its a heavy sob that will pull like a dream
