OER Parts offers a wide selection of Package Tray / Rear Seat Shelf your 1970 Buick GS. OER Parts offers 1970 Buick GS OEM Style Rear Seat Shelves, 1970 Buick GS Rear Seat Shelf, 1970 Buick GS Deluxe Rear Seat Shelf, 1970 Buick GS Deluxe Mesh Rear Seat Shelf, 1970 Buick GS Vinyl Covered Seat Shelves, 1970 Buick GS Seat Shelves with speaker cutouts, 1970 Buick GS Seat Shelves without speaker cutouts, and 1970 Buick GS Seat Shelves with with or without center speaker.