I could not believe how difficult it was to actually find a cap for the E450. I not only went to the usual auto parts stores, I went to my local Ford dealer. They all have NOTHING in their computer for our vehicles!
Luckily, I discovered another thread in which someone discovered this cap (in pic below) which works. One person had tried it on their Freedom Elite and another on a Vegas 27.7. Picked it up at my NAPA dealer this morning and it went right on. Well, after I figured out that you can't put it on while it is in the "locked" position!
Thor Forums
