You are buying a Set of 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 Camaro Z28 RS SS  Firebird Trans Am Formula 400 455 RARE GM 1 left side and 1 right side Rear Leaf Spring Insulator Pads Anti Squeak Pads GM # 480566. These original GM used parts are on very nice condition see photos no returns. shipping cost include some of the ebay fees,pay pal and handling costs .After you receive these parts if there is a problem please contact me so we can resolve the problem before you leave me a negative feedback . Thank You.