well fronts are 15x8 just my rears are 15x10 i measured from where the wheel contacts the rotor to the outer lip. i ordered custom springs to put on my tockicos from a jegs style magazine to drop it where i wanted it. ill have to find the magazine again to see which ones it was. i cant run anything bigger then a 205 60 on the 10s or else ill rub real bad, i had 225s the first time i put them on and it just ripped holes in the sidewalls. fenders have been cut and rolled as well.