Chevy Intermediate Diff Cover Gasket 12 Bolt

The Chevy Intermediate Diff Cover Gasket 12 Bolt is an OEM-specification sealing component engineered for GM 12-bolt differential assemblies. Built from durable cork material, this gasket maintains a critical sealed interface between the differential cover and the housing, preventing gear oil leakage that would compromise drivetrain performance and longevity. Whether you're rebuilding a classic muscle car, restoring a vintage truck, or servicing fleet vehicles with traditional solid axles, this gasket is essential maintenance for any technician or enthusiast working on Chevrolet rear-end systems.

Cork gasket material provides proven compressibility and oil resistance, conforming to cover irregularities while withstanding the thermal cycling and pressure fluctuations inherent in differential operation. The gasket's compact profile—measuring 11.75 by 17.5 inches with 0.5-inch thickness—fits the factory bolt pattern precisely, ensuring even clamping load distribution across the sealing surface. This dimensional accuracy is critical; improper gasket selection or installation leads to weeping seals, oil starvation, and accelerated bearing wear in the differential assembly.

Technicians and vehicle owners maintaining Chevrolet platforms equipped with 12-bolt solid axles—including trucks, performance vehicles, and light-duty commercial applications—benefit from this precision replacement gasket. Installation requires no special tools; simply clean the mating surfaces, position the gasket, and torque the cover bolts in a star pattern to factory specifications. This Racing Power Co-Packaged component ensures reliable, long-term differential sealing without the expense of a full cover or assembly replacement.