1964-67 GM A body, , Elcamino, , Core Support Mounting Bushings Bolts 4 pc These are the bushings that are used the core support to hold the radiator core support to the front of the frame They are the mount that goes between the rubber mount and the core support. This is a factory exact inline tube reproduction rubber with zinc plated insert. If you are building a concourse car this is a great detail item that is usually overlooked.