Hi All, I have a 2005 F350 extended cab diesel towing a 12k+ 38' 5th wheel ball style Cougar 330RBK. When going over bumps the truck has like a jerky bounce. Just put new Sailun tires on which did help but I am not sure if the issue is on the truck side or caused by the trailer. Being an extended cab I am thinking it's the front end bouncing but obviously can't try to watch and drive at the same time. It can't be good for the truck or hitch.