An Eagle Cap Camper Snapped A Ram 3500 Dually In Half, Mopar Refuses $17,000 Repair Bill

The max load ratings of the Ram must not be a 100 percent duty cycle. LOL
Large industrial engines are run for months at 100% load or duty cycle. They are engineered for that with lots of cast iron.
When dealing with trucks, approaching the load limits dictates serious consideration of purchase of a bigger truck. Physical size may be the same but the under pinnings are built more substantially. RV dealers need to be sued for selling trailers or campers to people that are over the vehicle capability. MT, the truck can just handle the load, but then the customer puts pots, pans, dishes, bedding, cloths, food and probably water in. Now the GVWR is exceeded big time.
Personally I support a RV endorsement like air brakes to tow a trailer bigger than a utility trailer or drive a motor home. How many people got through life driving nothing bigger than a half truck and utility trailer. Now they retire and want to travel. They purchase a pick me up and big RV trailer or motor home and tow a SUV for putzing around.
We have red necks by the score here with chipped 1 ton trucks and big 5th wheel trailers cruizing down the highways at 140 to 150 KPH, 85+MPH. Then they wonder why trailer tires blow, lights fall down and shelves loaded with canned goods collapse. It does not help these RVs are built like cardboard sardine cans. But they gussy em up to look like the Taj Mahal and charge big dead presidents for em.