OER Parts offers a wide selection of Package Tray / Rear Seat Shelf your 1971 Buick GS. OER Parts offers 1971 Buick GS OEM Style Rear Seat Shelves, 1971 Buick GS Rear Seat Shelf, 1971 Buick GS Deluxe Rear Seat Shelf, 1971 Buick GS Deluxe Mesh Rear Seat Shelf, 1971 Buick GS Vinyl Covered Seat Shelves, 1971 Buick GS Seat Shelves with speaker cutouts, 1971 Buick GS Seat Shelves without speaker cutouts, and 1971 Buick GS Seat Shelves with with or without center speaker.