I have a 2012 Rushmore 35rl. Love the unit. Have a problem with the hangar for the sliding door. The rear hangar keeps breaking while going down the road. The flimsy lock that secures the pin keeps coming open and allows the door to hang down.
I don't know your setup but, I had a problem with a sliding door in my motorhome. When fully open, the back edge contacted the wall. I put velcro on that edge. When I opened the door all the way, the velcro caught it and held it so I no longer had the problem.