http://www.summitracing.com/parts/gri-8-00008/overview/make/buick/model/skylark/year/1972 Got a 72 455 man trany. in a 72 skylark. The bottom hose outlet is 1 3/4" on these rads . I think that both the inlet and outlet are 1 1/2" on buick larks and gs ? I just as soon pay more for the right one first and be done. or this one http://www.summitracing.com/parts/bci-10008/overview/make/buick/model/skylark/year/1972 Compare here http://www.summitracing.com/compare so many sizes what is the correct size?????????????
