Biggest Tire Size Without Rubbing

To make a long story short I want a set of tires that run 2" bigger in diameter than factory (29" in lieu of 27"). I know there are a lot of folks on here that run bigger wheels like 20's and are probably pushing a larger tire. Does anyone have first hand experience running a larger tire (like 255/55/R18) and can provide feedback on whether they rub while driving hard? I can't go to a smaller diameter wheel because of my BBK.
 

hrspwr236

Active Member
275/40/20 on 20x10 et 25, very slight rub on full lock just before full lock no rubbing. Stock ride height.
 

Coupe

Active Member
I have a stock wheel with a 255/50/18. It is a 28.0 O.D.

No rubbing w/ XII drop.
 
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