Dr, when you say stock size tires, do you mean 225/55r16's,,,, thats what I'm showing was stock on 93 mustangs according to the ford sales brochure on pony rims. In comparison between the 245/50 vs 225/55. the 245's are a smidgen shorter, but 3/4" wider.
Do you think the wider part, tread width, is what I might have an issue with, without the steering limiters?