Hello, no rubbing. Aero mode work fine. Did the link mod, not maxed out. Ride is great. Not really sure on gas mileage. I know they are only a bit louder than the stock ones, definitely lost some fuel economy.do the 315/70/17's rub at all? Is it a problem when you are going down the highway and the truck drops down to aro-mode? Also what kind of fuel economy are you getting with those? Thank you VERY much!!