ARP didn't return my message again, so I called them. They say there was never anything produced for the Explorer and that the stud used in the picture must have been an ARP stud modified by a 3rd party and installed on an Explorer. They had zero interest in producing a stud after explaining the problem we are trying to solve. They said a one-off custom unit could be made through their custom orders department, but they would need the dimensions of the factory bolt and would quote out cost at that time.