Hard pressed getting that with even a 1/2 ton gas engine.

As for the bottom of the doors, yes this is a bad design. When driving in slushy freezing conditions it can jam in there and freeze. The bottom of the chassis needs to be changed to prevent wheel spray from going up between the door and the chassis. I preferred the plastic Lariat running boards to my polished aluminum ones just for that reason. It keeps the bottom of the doors clean and doesn't rust. When these metal bars rust I am going to order a set of the plastic platforms like my 09 had. Might not be as shinny, but they are very functional.