Good question that I forgot to put in post - also, I'd roll fenders only if I really really really have to. F: 255/35-18 +25; R: 285/30-18 +37. You can see clearly that the fronts cover more wheel well volume than the rears. However, the rears are flush with fender wall than the fronts. So, any lowering of fronts may require pushing wheels slightly (5mm) outwards to keep flush look.