To answer your question....YES! We have 1996 Roadtrek 190 Popular on Dodge 3500 chassis with rear air bags. I have tried it every which way with little success. GVW rating is 8510 Lbs. Fully loaded ready to roll( full fuel 35 gal, full water 31 gal, full propane 7 gal, hot water 6 gal, empty black&grey, 2 people and the wife's "STUFF") it weighs in at 7702 lbs. Front axle 3190 lbs and rear axle 4512 lbs. I have settled on 50 - 55 PSI front...65 - 70 PSI rear and air bags at 65 lbs.
For me ...this provides the most consistent ride for almost all normal road conditions. When you hit a bad bump it feels like the van is welded to the axle.
When we travel on wash board & bumpy roads or off-road, it is painful, and SLOW is the only way to survive, and keep cupboards attached.
They DEFINITELY are not for extended driving on questionable or rough roads, although we have gone to some out of the way places, but we are retired and have LOTS of time.
Good luck!
