Don’t see how to make a new post. My slide out was pushing out at the bottom and staying in at the top. Have a 2011 3750FL. JUST GOT IT. When I got to looking the slide arm plate had been bent a lot causing the bind. Can not see it unless you look underneath. The cause was from the carpet being balled up when the slides come in. Result was the slide arm bending the flat steel plate that the arm bolts to. Hope this may help someone else. Being fixed at dealers expense. I will buy carpet protectors so that when the opposing slides contract this won’t happen again.