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

The truck's rear axle was severely overloaded just sitting in a parking lot. Adding wind pressure over the truck cab at 70 mph makes things worse. Adding wind pressure straight into the camper at 70 mph makes the camper want to slide back and tilt rearward. It's a tall unit. Plus the seesaw action [momentum] when you hit a dipsy do in the road.

I don't have any info on the new stuff, but in the 80's a one ton pickup had a different [weaker] frame than a one ton cab and chassis, which had bigger brakes and a higher gvwr too. There is a plate on the door[?] which states the gvwr. for the truck and gawr for each axle. All three ratings have to be met or you'll get towed home from a weigh station.