well, BFG tires run big as it is, but then you squeezed 315s onto a 17x9 wheel? My guess is you have some excessive tire bulge going on, which might attribute to the rubbing problem. Is it rubbing on the inside or outside of the tire? You could either run a spacer, or roll the fender, depending on where it is contacting.
Yeah did you try and shove a 315 bfg dr on a 9" rim?
the Sumi's 315's I got on my 10.5 fit great and clear everything. granted I'm not lowered alot but it still clears.
woops my bad...i have 18'' saleens now with a 10.5 in the back..and if i do a donut or something like that the body roll makes my tires rub...which is pretty gay