Just replaced my two front speakers. I thought two speakers meant the car was stereo but a helpful chevelle owner told me that A/C equipped 70-72's had to have two speakers because the A/C ductwork took the space usually reserved for the single center speaker. I bought replacement speakers from a Chevelle parts house and have seen the same speakers in several catalogs. They are not the original oval shaped original speaker but smaller with new speaker technology. If you are not an original parts person, no one can see these speakers, they are made for the 70-72's and they bolt right in to the original space. Sound great too!