looking at my car, I think a 5 in back space will hit even with coil overs...If it does not, I think you could poss run a 9in tire...You might have to roll the lip..look at my pics of the 240 it has a 8.5 slick and does not rub on the outside with a half in spacer in place...on the inside it's close w 4.5 backspace and no spacers..I think 5in would be too much...just my .02 cents...it will be close no matter which way it goes...