Im trying to come up with some ideas to make a guard or incorporate a toolbox with my stacks. I would like to make something so that I can haul dirtbikes easier because with the stacks now they will melt my tires. So I was thinking of making some type of guard for when Im hauling stuff in my bed to protect it from catching on fire, but also for when Im hauling bikes. So maybe a guard with bike chocks built into it or something. Any ideas? Here are some pics of a rack made to hold a box between the stacks..