1969-72 Pontiac, GTO, Judge Lemans, Grand Prix, Radiator Core Support Brackets 4pc These are the brackets that hold the radiator insulators in place at the core support. They prevent the radiator from sliding forward through the core support. These are always badly rusted since they were exposed to the weather through the lower valance grill. They are identical to the old brackets and come with the mounting bolts. This is a factory exact inline tube reproduction made in zinc plated steel identical to the original. If you are building a concourse car this is a great detail item that is usually overlooked.