Ideally, a 15-20mm hub-centric wheel spacer with studs on the front and rear would be needed and look the best, but I'm not sure if the 15mm or 20mm spacers would require cutting and shortening the wheel studs to fit in the pockets on the Ford GT PP wheels. If you have to shorten the studs with 15mm or 20mm wheel spacers, it would essentially force you to keep wheels spacers on the car at all times since the factory wheel studs would be too short to securely mount the OEM wheels directly to the hub without the spacers.Do I need a spacer to run the wider rear rims on the front? If so what is the correct setup to make this square? Any help would be greatly appreciated!