Hello all, I have read almost all of the posts regarding road problems but have found nothing to help me, so here goes. We have a 1999 Coach House on a Dodge 3500 chassis with the 360 motor. The motorhome has a generator, shower and toilet, so it does have extra weight on it. The BIG problem is it is all over the road! Sway, porpoise, bounce, you name it, it has it. It has 50k on it and the front end is as tight as new, tires are new and kept at about 75psi (tires rated for 80) rear, fronts are about 55psi. It has airbags that have been used from 10psi all the way to almost 100psi with no help at all. All components are new or like new so I don't believe there is failure there. The rear axle is 4" narrower than the front and I am not a fan of wheel spacers, so what do I do now? Any feedback would help.