I hate when rocks and sticks get down in that space in my tailgate. They sell a product that lines that space, but they sell for around $30 or so. But I was wondering if anyone has made something for this? I'm just trying to figure what kind of material I could use and where to get it. It's nothing fancy, maybe a heavy rubber material, or plyable plastic of some sort that I could tuck under the bed/tailgate liner and screw in place. Anyone?