Have you had any rubbing issues? I just got an '18 Z71 and looking at KO2s or Duratracs. I just got rid of a '99 Tahoe (Z71 retrofit) that I had 265/75r16s on. They rubbed slightly on the front of the lower control arms hard over, but only enough to polish the metal and rubber. But, that was also a far cheaper, older, less perfect truck when I got it. I didn't want to get rid of it because the engine and trans was low mileage, but it was getting to be a money pit.