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 ...
I don't think it's your class C at all. I was through Arkansas last year and not sure I want to go through the areas I visited again. VERY rough. I have heard and read enough horror story's about Oklahoma from this forum and others. I'll find out first hand when we leave for Arizona in December. UGH!!!