I ran a search but am pressed for time so try not to kick me to hard. Im looking to get afs 10.5 repros for the rear of my cobra. When I bought it, it already had goodyear eagle f1's so I'd like to just run those on the rear. Question is will those tires in the above mentioned size fit with just using a modified irs bolt or will I still have to use a spacer? Any other issues I'll run into? Car is stock height and is a convertible if that makes a difference.