[JRTJH]

While I have no "written confirmation from Ford" I can say that I've been buying Ford F250's since 1987 and I've never seen any "Ford ordering guide" that offers a F250 dual rear wheel configuration.

There are a number of F250 "chassis cab trucks" that were produced by Ford and modified by "aftermarket companies" for many purposes, from mini-home (class C motorhome) to light duty ambulance, flat bed/dump bed uses. Many of them offered a DRW modification. But, not from the Ford factory.

The "fact" (my personal experience in ordering and buying Fords) is no guarantee, I can say that I've never seen a F250 DRW truck that is OEM and I've never seen any "factory" catalog or order sheet or internet FORD site that has any information on how to order one or how to buy one.

So, like Jim, I'd love to see some photos (or even just one) or a document (from Ford) detailing the specifications, ordering information, parts documentation or even just a "OEM price guide" on a DRW F250.....

Aftermarket: Lots of companies offered/offer them
OEM: If there is such a truck, I've never seen any evidence of such.