Hello from california. So im in the process of purchasing a new truck. I've been doing some research on the sierra and was wondering if the vibrating issue is only on the 2014's or did it also carry over to the 15's. I really like the look of the truck but question the reliability. I currently drive a 2010 tundra and it has been flawless. Looking for a new truck because of my ongoing back issues and the tundra being lifted just sucks. If I can get some quick responses it would be greatly appreiciated since im trying to take advantage of the veterans discount. Thanks