So if I have rear GTA's to use in the front (I know 4 fronts are best but....) and wanted to use adapters rather then spacers, what size adapters would I use. I know spacers are easier but for the sake of changing studs, etc I figure adapters are easier and safer. Assume 245/50's on GTA rears on the front. Is there a thin enough adapter that wouldn't make the wheels rub or stick out too far?