You mean
THESE? They're part number 4615576 (Group 12.934) and were used on the 65-69 Corvair, the 67-69 Camaro, a lot of 50's and 60's Cadillacs, most 50's full size, 50's and 60's Olds, Most Pontiacs, etc... Used all over the place!!
One part number, used on either side.
Ed