I saw this to late, when I bought my new ford it didnt have the puck system in it , but it was a kit you could buy and have installed. I got it up here 400ish bucks, and the spots for the holes that need to be drilled are marked out in the box already, so I drilled the holes out and then when I went to remove the box bolts I broke few bits, so I took it to ford and had them finish the install. I would do it all over again if I bought a new truck that didnt have it as the puck system is so much nicer than having rails in the box.
Steve