My 2007 Fleetwood Expedition 38L is leaning on the left side about 1 1/4" to 1 1/2".  When we noticed this on a camping trip I immediately notified Fleetwood at their 800 number.  The MH was doing it both when the air bags were full and when depleted, I assumed the airbags not operating correctly. Fleetwood directed me to call Freightliner and get it into them.  

I took it to Freightliner and they charged me $600 to tell me it was leaning (which I already knew) but that it was not in the chassis.  That I needed to take it back to the "box-builder/Fleetwood" to have it looked at. They believe that the motorhome is now somehow not mounted correctly on the chassis?

Has anyone heard of this before?  It seems a little concerning that my motorhome has altered its attachment to the chassis.  We love the motorhome and only have 23,000 miles on it. I have it scheduled to go into Fleetwood in the next month to be looked at.   Please advise or feel free to comment or call me.  909-815-9481. Keith