I just bought some OEM 11-12 Shelby track pack wheels for my 13 GT , i know the fronts are 19x9.5 and rears are 20x9.5. they still have the goodyears on and i like how they ride they currently have 285 on the rear 285/35/20 my question is will a 305/35/20 goodyear G:2 tire fit? if not what size can i put?