MChildress
TDR MEMBER
I'm running 265/70/17 on my dually with no spacers and have about a half inch to spare between duals loaded. I know several guys running 315's on our six inch rims. They have a 2" level kit up front and 2" spacers between the duals. One has gone to mag wheels because of the 315's flexing and breaking loose the plastic simulators.