So.... these plastic '70s-era Superior air intakes are impossible to remove without destroying them. Superior had always used Cadillac's air intake, that was used on the Series '75s, up until like '69/'70'71. Those Cadillac-supplied intakes were a nice, heavy pot metal intake and they were easy to service. They cannot be taken apart from the outside and the 3 bolts just spin when trying to take the nuts off from inside the quarter panel. I still have my '74 Superior ambulance sitting here, so I decided to go this route.