I have a 2011 Nitro SE 3.7L . I have to repair the head gaskets because I have coolant in Cylinder 2 which was causing a 0302 code. Luckily no coolant in oil or white smoke from exhaust. From what I can tell after extensive searching does it really matter which service Manual I get? it appears there weren't much changes between those years accept for options. and just about everything I see is for a 2007 Nitro 3.7L.