I have the 315s and mods in my signature. Mine are mounted on stock wheels and I have no rubbing at all under any conditions. I am sure with close to stock back spacing and offset that true 35s(another 1/2 inch) would be no problem on mine. I can not really compare the Ranchos with stock ride since I did the 315s and Ranchos at the same time. The Ranchos are ok, I am assuming they are better than the stock shocks would be with the 315s, but really don't know. My combo has been on for close to 30,000 miles now. I run the front Ranchos at setting 7, pretty stiff, but the ride is not bad at all. It is a 3/4 ton heavy duty 4 wheel drive truck after all.