So I'm getting some new tires for my 18"x9" rims(5" backspace, 2mm offset). I know that most people have gone with 285/60/R18 and had little trouble with fitment. I'd like to get the Nitto NT-404's in 305/55/R18 which measure 31.2"x12.24" wide. Will I beable to fit a 12.24" wide tire in that front wheel well by just doing some trimming? I'm not sure how to do the math.