I would think if hangers bouncing off the rods is combined with components/screws/rivets coming loose it would be good to look into tire pressures and running gear balance, hitch stiffness and adjustment, truck tire and suspension stiffness, truck shock absorbers ability to control the rear axle on rough roads, as well as speed on rough or segmented roadways.
We have spent some time and money getting these things in order as best we can, use no more truck than we need, and have not had things bouncing around inside our Airstream. That said, there are roadways about the country that have had us slowing down and seeking another route on occasion.
Doug and Cheryl
2012 FC RB, Michelin 16, ProPride 1400
2016 Ram 1500 Laramie Crew Cab 4X4 Ecodiesel 3.92 axles
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