Our Saurer is a massive beast, 27 feet long, 28,000 pounds, 12 feet high. Our cabin is strong, 2" aluminum wall studs and crossmembers, and can be lifted off the truck with hoist points on all eight corners. However, on a rollover, I doubt using those would keep the structural integrity intact, even though the box is bolted to the frame on all four corners. The aluminum frame is the base for the cabin/box and is attached to the steel truck frame. Don't see how one could attach D-rings to either. I guess avoiding a rollover situation would be the best bet. Plus, my wife wouldn't allow to do so anyways! Guess that is the plan.