katoomer wrote:
Take it to a heavy duty truck frame and alignment shop. If the frame was built crooked they might be able to find a way to compensate for that. The Ford dealers are most likely not knowledgable enough. Dump trucks and the like get twisted all the time. They can be fixed.
This is the correct answer. The OP has been fooling around with RV dealers who have zero experience with heavy duty suspensions. He has been to Ford dealers who *might* be able to align a Ford Fiesta correctly, but don't know diddly squat about heavy truck alignments.
Take it to a heavy truck shop, get it corrected, spend whatever it costs, then get on with your life and enjoy your motorhome.