We contacted Heartland about sidewall movement on our 2011 Bighorn 3610. Since we were in the area, they went out of their way to diagnose our problem and got us in for service the following Monday. They reinforced our frame and sidewalls and put everything back together better than new. They went above and beyond our expectations. Even did some extra minor repairs while they had it in the service bay. We can't thank everyone enough for the great job that was done. Now we continue on our adventures knowing the Rv is in great shape.