Cummins12V98 wrote:
Same here, I don't get the gasser/Diesel combo either in a 3500 Dually. There is no way my exact truck with a gasser could pull my 23K RV. Flat ground I suppose it could maintain the speed limit but put a 6% grade in front of it or even try going down that same grade will not be a pretty picture!
The payload difference will be mostly over the front axle. 5th wheel trailers place 150# or less on the front axle. Pulling capacity will be MORE with the Diesel.

That Ram chart is funny for the Hemi 6.4. Why would the payload increase for the DRW 6.4 with the 4.10's over the 3.73's. What is the difference that caused the 3.73's GVWR to go down 700 lbs? I think it's an error cause I don' t believe anything is different... Unless they put ST tires on it :W
I also bet the take rate for a gasser Dually is less than 3%. In fact I bet I can't find one on a lot within 1000 miles from me.