I have a 2011 GMC Sierra SLE z71 with a RC 3.5 inch lift with the upgraded control arms. I tried out some 305/55/20 yesterday with stock 20" wheels. They rubbed just the sway bar and no plastic. I was looking into 295/55/20 but I don't know if that will still hit the sway bar. I don't care if it rubs plastic because I'll just cut the fender so that's no problem. I wanted to see y'all's preferences on what I should get.