O.K. Maybe I didn't my question clear enough. How many cross members should there be on the underside of AD 1/2 shortbox bed? On this truck I have the one at the front by the forward bed wall. The one at the aft by the tailgate. The one just aft of the wheels that is supported by wooden blocks. And one that is just forward of the wheels that is kind of free floating. Like I said before the other holes in the bed rails just have penny washers and nuts on the underside of the bed boards.
