Like a lot of recent threads talk about, certain options and configurations may be incompatible at dealers to order, at certain times; even if the website’s build and price for us as consumers, allows it. Usually comes down to inventory and parts of the factory to be able to build it in the near future. I’m sure that configuration (Limited 6’4” Bed EcoDiesel) is possible to be ordered and built, just possibly not as this time. I recommend asking another dealer like ya guys said. If they also can’t order it, it’s probably the above problem I just mentioned. In that case, I’d say wait, or build a different order that you would like.