Spacers will also mess up the scrub radius, sai, and included angle dimensions. If you do run spacers of that thickness, get the kind that have their own set of wheel studs on them, rather than using extra long studs. Also, be aware that most tire shops will not service vehicles with spacers of either type over 1/4" in thickness, unless they were oe to the vehicle (ex. IROC Camaro) due to liability issues.
