Dave, thanks for the advice. My coach is one of the "rare" ones out there where the coach and the chasssi match year wise. My vin is for a 15, while the coach is also listed as a 15. I'm running into many supplier's that t do not list the 2015 E450, but have listings for the 2104. I even called Air-Lift and they would not say for sure that the 2 years were the same and parts would work. They are looking into it. Knowing Ford as I do, I suspect that there are subtle differences between the two years. Twenty years as a supplier. I will keep searching.
Thanks again for the thoughts.
__________________
Jim & Marianne Four Winds 28Z gone
2018 Ram Dually, Cummins/Aisin w/3.73
2018 VanLeigh Vilano 365RL
on the road