I've only had one breakdown on the road, and it was 7 years ago, and at that time I owned a Class C 31 foot Jamboree. The breakdown was caused by my slideout, sliding out about 18 inches,and of all places it was that narrow steep grade that you drive up before you get to Yosmite National Park. It was the dining room slide on the driver's side. What I did was drive on the shoulder on the passenger side of the road (this caused the coach to lean toward the passenger side preventing it from sliding out to the driver's side anymore) until I got to the top of the hill, and pulled into a gas station. There the wife and I were able to push the slide back in and secure it. The cause was I ran over a flat object (a thin paper book left on the floor by the Grandkids) while, retracting the slide-out shearing off a pin, which caused the slide-out to freely move in or out (with this pin sheared off, I couldn't use, extend or retract the side-out using the hydrolic's). John