This radiator support cushion is designed for Chevrolet cars and trucks with Big Block engines from 1968 to 1991, including models like the Chevelle, Camaro, Impala, and various C/K series trucks. Measuring with a 3.08-inch recess, this reproduction rubber insulator cushion fits both upper and lower mounts, replacing OEM# 6264100. Crafted from durable rubber, it is ozone and chemical resistant, ensuring long-lasting performance even in harsh environments. Its excellent temperature resistance makes it reliable for maintaining proper radiator alignment and reducing vibration. Backed by Metro Moulded Parts' 30-year warranty, this cushion offers peace of mind for decades of use.