Cometic's fiber differential cover gasket for the 10-bolt Ford 9-inch uses a .047" thickness and is sized for Ford 9" rear housings. Cometic supports its gaskets with in-house dynamometer and assembly testing to help ensure quality and reliability; this cover gasket is intended for differential cover service or rebuilds where a precise, tested seal is required.
Cometic Ford 9in .047in KF Rear End Housing Gasket