tire sizes
315/75r16 are between 34. 5 and 34. 9 inches in diameter, not 33. 305's are the equivalent of 33's. There is always a little fudge factor involved with the manufacturer's size claims. I recomend choosing a brand and research it well. BFG's are my pick for overall life and performance. I prefer all terrains due to the noise factor, or lack there of. BFG all-terrain TKO's in 315/75R16 are 34. 6inches tall with a 10. 5 inch tread width. It also depends upon the rims you are using. 8 inch rims will affect the diameter of the tire as well. Here I recomend a 10 inch rim for 315's. They do keep the truck dirty when driving in rain, mud, snow, and other wet stuff. But the stance looks really good IMHO.