When we first got our coach I noticed the big mud flap on the rear was closer to the road on the passenger side.(2007 Winnebago Journey 36G) After measuring from the frame to the road I found the coach was lower on that side by almost an inch.They have put a lot of weight on that side (basement air which has two compressors, five large batteries, a ten gallon water heater and a large propane tank) all located in the rear passenger side. I noticed also that the tires on the rear passenger side run almost twenty degrees hotter because of this. I increased the air in all four rear tires from 95 psi to 110 psi and it cooled everything down. I try not to load too much onto that side. Just a thought..
Bill