Differential Cover GM 12 Bolt Car Chrome

The Differential Cover GM 12 Bolt Car Chrome from SPECIALTY PRODUCTS COMPANY is a premium aftermarket upgrade designed for street and strip enthusiasts who demand both protection and aesthetics for their GM 12-bolt rear differential. Whether you're running a classic muscle car, late-model performance build, or a dedicated project vehicle, this chrome differential cover protects your differential internals from contamination while delivering a show-quality finish that complements any custom drivetrain setup. Unlike OEM covers that fade or corrode, this polished chrome cover resists oxidation and maintains its mirror finish through decades of use.

Constructed from quality chrome-plated steel, this differential cover fits the GM 12-bolt rear axle assembly and is precision-engineered to maintain a proper seal against differential fluid leakage. The chrome finish is applied over a durable base material that withstands thermal cycling, road salt, and the vibration inherent to high-performance driving without pitting or peeling. The cover's design accounts for proper ventilation and drain-back geometry, ensuring that fluid returns efficiently to the differential sump during cornering and acceleration. Installation requires only basic hand tools and torque wrench accuracy—no modifications to the axle housing are needed.

This cover is ideal for owners of first-gen and second-gen Camaros, Firebirds, Chevelles, and other classic and modern GM vehicles equipped with the 12-bolt posi rear end. Mechanics and restorers frequently specify chrome differential covers for show cars and restorations where originality meets modern durability standards. Before installation, verify your vehicle's differential model—the GM 12-bolt is distinctly different from 10-bolt and corporate 14-bolt units. Weighing just 1.76 lbs, this compact upgrade adds negligible unsprung mass while delivering maximum visual impact from underneath the car.