2011 Leveling kit ?
Most leveling kits do not void the warranty from what I understand. My service manager said that the only way they will void a warranty is if you jack the truck up huge and put like 40" tires under it.
i know this thread is old but im about to do the same 1" spacer on my 2011 lariat, but im scared of running into the "clunk" issues.....is it GUARANTEED that you wont have the issue if you disconnect the battery?
I disconnected the battery and the electronic steering connections just to be safe.

