I had looked into it a while back. The problem is not making the hook for the rope but that making it strong. The problem is the tie downs I make are t-6061, fairly light tensil strength. The only way I found to make the hook was bolting it to the oval but there is not enough room on th back of the oval for a bolt and washer needed to create a brace strong enough to hold down nearly anything. The problem would end up being with enough force the bolt would rip out of the billet tie down, causing damage to the tie down, the bed rail and possibly anything around it. I usually hauled a quad in the bed of my Trac and if the tie down wasn't able to hold the quad in place I wasn't about to sell them to anyone. I might still have a pic somewhere of the 2 tie downs I snapped when experimenting with this, nearly dropped the quad out of the bed when it happened.