Mr. Gasket Rear Main Seal

Fits 1968-1988 Ford 429,460 and 1968-1980 Buick 350

PART# 1965

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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.


  • 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


BrandMr. Gasket
Emission Code5
EngineFord Big Block
Oldsmobile V8
Product TypeRear Main Seal
Rear Main Seal StyleTwo Piece
Part Number1965


This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.


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