Sixseven unfortunately it looks like someone has welded in a patch for your bed bottom the original has some beads that run the length of the bed, and there would be an access for the fuel sending unit toward the rear of the bed. Someone else would have to provide a picture as unfortunately I let my truck go years ago. The rod across the back bed wall is also a custom addition, maybe to straighten the wall. Many of these would get a bow, causing dirt to gather between the bed and cab rusting out the cab.[/QUOT
Maybe it is just me but it looks like the fuel sending unit access is there.