Alright, truck owners – this is a specific but crucial piece of hardware if you're installing a Demco \Hijacker\-style bed rail or headache rack on your older Ford Super Duty. This is the Demco 8552006 Frame Bracket Kit. It's designed to securely connect the bed rails to the frame of your truck, underneath the bed. It's part of their Premier Series, which is basically the industry standard. The key thing here is the fit: this kit is made specifically for 1999 through 2004 Ford F-250 and F-350 Super Duty trucks, and it works for both the 6.5-foot and the 8-foot bed lengths. You'll use four bolts per bracket to get everything mounted up solid. If you've got a camper shell, a ladder rack, or any other equipment that uses these standard bed rails, having the right brackets is everything for safety and stability. Make sure your truck's year and model match before you order. No guesswork, just the right part for the job.