OER Parts offers a wide selection of Foam Padding & Seat Buns for your 1966 Chevrolet Impala. OER Parts offers 1966 Chevrolet Impala Standard Seat Foam, 1966 Chevrolet Impala Deluxe Seat Foam, 1966 Chevrolet Impala Seat Burlap Set, 1966 Chevrolet Impala Universal Seat Foam, 1966 Chevrolet Impala Bucket Seat Foam, 1966 Chevrolet Impala Front Split-Bench Seat Foam, and 1966 Chevrolet Impala Rear Bench Seat Foam.