bradyence

It definitely could be a bad shock, bushing or maybe even an airbag. But I did had the exact same thing happen on my 2001 Diplomat, it took me a little while to figure it out. I don’t believe we have the same chassis, mine is a rr8r and I think yours is a rr4r, but it might be something similar. My airbags are outside of the frame rails in line with the tires, and have frame sections that protrude out sideways from the rail to hold the airbag and shock. And there are stringers in between the frame rails that stabilize everything. I had several spots on my stringers that the weld had broke or the metal had bent this was causing the frame to flex more than it should. I had two of the arms protruding from the frame, actually pushing up into the floor of the motorhome. We had to jack up the frame and pull the pieces back together with chains, once we had the right place we welded it back together, and added extra gussets to strengthen it. I would recommend inspect every weld and connection point on the frame. Helpful yours it’s simpler than mine.