As I am looking for a 2500 new, I found that the payload of both Chevys and Rams is lower when they have a diesel engine than gas engine. Why is this? How does that affect the available payload for ...
While a Diesel can pull more, usually it is the axle, tire, and wheel ratings that restrict max payload. Thats why the power addition of the diesel does not offset it's weight when it comes to tow ratings, it has little to do with the engine at that point.