actually the 10" wide rim will msot likey cuase a lot of rubbing in areas where the 8" would not... also they will stick out... yes a 12.5" tire is closer in width to a 10" rim which is what i am sure of your reasoning however, this will aloow the beads to unseat while aired down a lot easier.. and quite frankly there is not enough space to push out the tires or inset them in far enough to not look stuppid... 33s arent super wide or tall by any means, and a 10 inch rim assuming 4" of backspacing will push 6" of wheel from the hub out, not to mention the tire.. this is going to equate to about 6" wider than the body lines... thus looky very dorky, it will also most likely either not allow full tight turning or will rub like crazy most times....