Thank you. I've never seen that design before, wasn't sure it was even part of truck, suspected it was a "mystery modification" from way-back-when. Previous owners welded tow hitch to the rear bed rail, added a 4x4x10" piece of angle iron to the firewall, etc etc. Probably made sense at the time... Anyway thanks again, I was preparing to re-invent the wheel, now I'll just buy one!