Hi Big Al, check this out. We built a headache rack/roof rack that bolts to the frame and encapsulates the box floor in structural ares as well. They were designed to take a roll too. This was a field test where we threw this truck as well as trucks from our competitors down a 120' cliff. The first pic is the truck prior to the first fling, the third pic is after 4 rolls and landing on the roof, very little cab damage, the second pic is after a total of 15 rolls, we had to photograph it upside down because of the area that it landed in, we had to pull it up a 120' bank upside down and the cab was still very intact at that point. I'm building one for my own truck due to the need for more storage space and I've been upside down more than once! They have light tabs and accessory mounts front and rear too.