I do know that the Bully Locking gas cover is one thing that wont fit on the 2012s. I bought one for mine, said 2009 to present on it, and the gas filler bezel is different than the instructions. I could not get it to work so took it back. I planned on trying it on to see the fit and then having it color matched to my truck. Sadly, a no go. So the moral of the story is..Some things wont fit on the 2012 that fit on the 2011.