Cool Contractor - I've been reading your thread about mounting Pirelli PZero Nero M+S P275/40ZR19s on a set of 19x9in FRPP wheels. I am in an almost identical situation; I bought a set of FRPP 19x9 in "Brembo Style" gloss black wheels for my '11 GT. I didn't want to replace a perfectly good set of tires, so I just mounted my existing Pirelli P245/45ZR19s on the new rims. They're not bad-looking, but wider tires would definitely be nice. And I'd like to (1) keep the ability to rotate the tires, and (2) keep the all-seasons since I live in Michigan and summer-only rubber is impractical, although I do plan to runs snows this winter.
Couple of questions: How do you like the P275 set-up? How does the steering feel with the wide tires up front? Any "wandering" on rutted roads? Any evidence of rubbing up front?
One thing I'd like you to check for me, if you don't mind......on the front struts, there is a bracket to which the front stabilizer bar tie-rod attaches by a stud-and-nut. I'm worried that this stud will be too close to the inside sidewall of the P275 tire, and might even rub/cut it. See the second picture from "6+6 Stang's" post on your thread at https://mustangforums.com/forum/s197...2011-gt-2.html for reference. Can you reach a hand up over the tire and feel how much gap there is between that stud and the inside tire sidewall? Right now I can fit two fingers (about 20-22mm) between my P245s and that stud. My gut tell me the gap should be about 7-10mm.