Bought 2010 Bighorn 3055, Apr 09, TravelandRV, Langley BC. Jul headed to east coast, aroung Montreal/Vermont area noticed both rear tires wearing on the edges (left on inside/right on outside). Horizon LussierRV outside Montreal checked the axels out (welds/measurments), contacted Heartland & Lippert, who determined it was a air pressure/weight distibution thing. 800 miles later in NS the rear axel almost fell off. I could move the U bolts by hand. There is a number of things about this unit that has to be fixed. As we are heading to AZ for the winter, I plan on stopping at Elkhart on the way. (Not our original plan) I've been trying to arrange something through Traveland/Heartland a contact person or ph number at Heartland, but nothing so far. ill be in Elkhart area about 5 Oct 09.