Be sure to have the tires road force balanced and get your alignment done at the best shop in town. It's money well spent and the only way to completely solve both of those problems. Good luck.I just bought two Toyo Proxes 4 tires for the rear ( 275/40/20 ) and had the F1s that were on the back switched to the front. I had the infamous outer wear problem and the scary as all get out shudder at 80mph. After seeing the Toyos, I can't wait for my front tires to wear out because I love the aggressive looking tread on the Toyos. I think I am going to stick with the 245s for the staggered look. Do any of you have problems with rubbing with the 275s?