If you carry a camper with a slide and tow a heavy trailer, it's easy to pass the 6-ton GVW mark. Although there will be people that will claim this is unsafe at any speed with a SRW (Nader love children), there are plenty more people that have made the required adjustments and traveled thousands of miles with these setups. It's important to research your vehicle components and find the weakest parts - It's just as important to research vehicle class and driver license restrictions to see why a manufacturer may set an arbitrary rating that is bellow component ratings.