I just purchased my 90 mustang gt 5.0..It had 16" wheels w/ 265/60/16 mt et street on it..they seemed to rub on the rear wells vert little..I just sold them and installed a set of used centerline convo pros and they are a 235/50/15..and they rub any time you hit a bump or a drive way...any suggestions?? I believe all stock suspension..