I am having my stock 200 lifted Oct.4 and the installer wants me to pick my tire size. If I order 295-70-18 and they don't fit, I am screwed. Not putting an Arb bumper on 'til Jan 2011 which would provide a bit more room. I could add a spacer but recall hearing negative things about it "I think". Anyone have experience with this tire size? Nitto Terra Grappler.