275/40/18
#2
6th Gear Member
You'll have to check the tire manufacturer's recommended wheel width range for that particular tire. You might be able to get away with it on an 18 x 8.5 wheel but from what I've seen, you may be pushing it.
#5
I don't know how wide the factory 18" bullitt is, but I have that size Falkens on a 18x9 AFS wheels bullitt replica and that is the widest you can put on a 9 with the 40 sidewall. And, btw, if you're not sure what brand tire to go with read this first which is only a few personal opinions:
https://mustangforums.com/forum/2005-2014-mustangs/488596-700-dollar-rim-tire-mistake.html
https://mustangforums.com/forum/2005-2014-mustangs/488596-700-dollar-rim-tire-mistake.html
#6
6th Gear Member
I know that my fanblades and most of the other S197 Ford OEM wheels are listed on Tirerack (under Ford Racing or SVT) and has the wheel specs. Again, just because you CAN put a certain width tire on the wheel doesn't mean you should. Respect the tire and wheel manufacturer recommendations.
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olvanish
2005-2014 Mustangs
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01-16-2008 03:26 PM