Polished Aluminum Diff Cover 10 Bolt

The Polished Aluminum Diff Cover 10 Bolt from Racing Power Co-Packaged is a precision-engineered replacement differential cover designed for GM 10-bolt applications. This component serves a critical function in protecting the differential housing while maintaining the integrity of the gear assembly underneath. Field-proven across both street and competition platforms, the aluminum construction provides significant weight savings over factory cast-iron covers without compromising structural rigidity or sealing performance.

Manufactured from polished aluminum, this 10-bolt differential cover delivers superior heat dissipation compared to conventional covers, a critical advantage for high-demand driving conditions where differential temperatures can spike significantly. The polished finish not only enhances visual appeal but also resists corrosion and simplifies maintenance. The precision-machined design ensures a factory-tight seal against the differential housing, preventing gear oil leakage and contamination. Weighing 4.65 pounds, the cover's lightweight profile reduces unsprung mass on the rear axle, improving suspension responsiveness and handling characteristics—particularly valuable in performance-oriented applications.

This cover is engineered specifically for GM 10-bolt differential assemblies commonly found in Chevrolet, GMC, and related platforms from the 1960s through modern production years. Installation is straightforward—the cover bolts directly to the differential housing using factory mounting points, requiring only standard hand tools and basic mechanical knowledge. Users performing differential service, upgrades, or restoration work will find the polished aluminum finish provides both functional durability and aesthetic appeal that complements modern and classic builds alike. Ensure compatibility with your specific vehicle's differential before ordering, as GM produced multiple differential configurations across its product lineup.