Mr. Gasket Rear Main Seal

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Overview This Mr. Gasket Rear Main Seal is made from silicone to allow the seal to handle extreme engine oil temperature. It also provides for an upgrade for that leaky rope style seal and is a direct replacement for a rubber main seal. It's also injection molded for a precise fit. Fits 1959-1985 Chevrolet Small Block with 2-piece rear main seal Features Repairs That Leaky Rear Main Sail Silicone Rubber to Withstand Extreme Engine Oil Temperatures Upgrade for Rope Seal Equipped Cars or Direct Replacement for Rubber Main Seal Injection Molded for Precise Fit Show more