On my setup the pivot was with bushings in the lower mount that sat just proud of the holes and then the bolt went thru the middle and tightened up the bushings leaving the shock to pivot on the bushings. It worked very well except for one know-it-all who made his own and despite being told several times that it has to pivot, locked it all up tight. The works ones were "upside down" so the lower mount was on the rod. after a not very long time the rod snapped off and the front end collapsed. He tried to blame it all on me so I sat him down and said "Look here Brother, I told you 10 times that it had to pivot down there or this would happen. It broke where the rod was stepped down to 3/8 and threaded. We just drilled and tapped the rod and loctited as piece of threaded rod in there. Been that way for a lot of miles since then..... Mostly in the new owners hands!