It was touched on earlier in the thread but just to clarify. The main reason the DRW 350 has a higher listed max payload over the 450 is the DRW 350 can be ordered stripped down to a regular cab, 2X4, 6.2 gas engine. That's a big weight loss over the 450's mandatory crew cab, 4X4, 6.7 diesel. Option them the same and the payload will be similar. That said, they are both limited by the Class 3, 14k ceiling. I also agree that if I was going to go DRW, it would be only a 450 due to the wide track that is no longer available on the DRW 350 in 2017.