The Rear Main Seal made of rubber 3764 is an essential component of many engines. It fits onto the crankshaft to prevent oil leakage between the engine block and transmission. The rubber material provides a tight and long-lasting seal that is resistant to wear and tear. It is important to choose a high-quality Rear Main Seal to ensure proper engine function and prevent oil leaks, which can lead to costly repairs. Trust in the reliability and durability of the Rear Main Seal – rubber 3764 for your engine’s needs.
Best Gasket rubber rear main seal. Fits 1934-53 Buick Straight 8 233-248 “40-50” small series and 263 w/ Dynaflow. Rear main seal not used from 1934-38.