Smitdog I can't answer ur question directly but I owe a 2013, I bought used that had some sort of leveling kit on it. I caught the itch to go high so I did. Bought the 7" Superlift suspension lift kit and installed it in my driveway. I'm no mechanic! But as a construction trades welder I had the tools to be confident I could install it and I did. RC price wise is the cheapest brand. That alone scares me just a bit. Ask as many knowledgeable people as you can. Body kits are very easy too. I shop at Amer. Trucks.
Good Luck!