The 13' trucks came out a little later than normal...I ordered mine on Dec. 5th, 2012 and didn't get it until May 9th. 2014....Was designated as a 2013.5 due to the time of year it came out...From what Chrysler rep told me, (met one at my dealership), all 13's that came out in 2013 were "designated" as 2013.5's whether it stated such on the window sticker or not, again, due to lateness that most were shipped from the factory to the dealerships....Again, that is what I was told by Chrysler. No difference in a truck manufactured 4/14 through re-tool..