Freightliner Corrosion Warranty (or lack thereof)

Look at a bare motorhome frame, engine and running gear before ANY chassis modification or installation work is done. The pictures showing corroded metal do not appear to be related to the original Freightliner portion of the motorhome. The FL metal work is normally well treated before it leaves the factory and has a much different texture to it than what the MH factory does to their contribution to the "finished" coach.