Are the stake pockets on F-1 and F-2 the same part ??

A guy on another forum wants to know

 

I've seen it written here that they are not. The Express bed on a F-2 or F-3 is taller than the F-1 bed. So it stands to reason that the old style pockets, although visually similar, would be taller on the Express bed. I can go measure my F-3 pockets if needed to allow a comparison. Stu

 

They are different, this was discussed here a while back.