[RMcNeal]

While I prefer diesel, I don't necessarily think you must have one. However, if you are looking at a 3791RD, which is what I have, you are not going to want to go with an F250. The weight of a 3791RD is too much for an F250. At that size and weight you are firmly in the one ton, F350, range and possibly in a dually which only comes in F350 and above. You will only know based on the loaded weight and pin weight of the rig you choose. I'm not too familiar with the new 7.3 Gas models, but all things being equal, the truck would need much more payload than an F250 has to handle these larger models.