When it comes to bigger truck vs smaller.."better to have it and not need it than need it and not have it"
Frequently ours is loaded to the gills, with a motorcycle hanging off the rear rack. Close to load limits e450 for a 23u. OOn occasion lesser.E450 has a different brake actuator system, slightly bigger drums, and a bigger ring gear rear end. Fuel mileage reportedly 1 mpg worse. That rear end helps me pull the jeep with the bike on it (if I take it) up mountain passes easier. Pick your horse for your course.