Ride Quality

I have a 24 foot class C E-350 ford based motorhome. On good roads it rides great. Humps are handled with ease. However, pavement strips feel like 6 inch dropoffs. I just drove from south Florida to mid Oklahoma, and had no complaints until I hit I-40 from Fort Smith, AR to Oklahoma City. I thought my teeth would jar out. I checked my air bag pressure, my tire pressure, no change from leaving Florida. It was so bad that my air valve extenders on my duals actually bounced back behind the wheel covers necessitating my removing the wheel covers to retrieve them back outside the covers to check the tire pressure. Everything was jarring every few feet for 180 miles. There were a few sections that had been repaved, and they were fine. In areas where the blacktop resurfacing was peeling, it was still okay, but those concrete strips were murder.

Suggestions on how I can make my RV handle pavement strips better.