Rear Disc Conversion Kit GM 10/12 Bolt

The Rear Disc Conversion Kit GM 10/12 Bolt from Right Stuff Detailing transforms aging drum brake systems into modern, reliable disc brake performance for classic and vintage General Motors vehicles. This conversion kit is purpose-built for operators and collectors who demand repeatable stopping power without the maintenance headaches of antiquated brake designs. Whether you're restoring a muscle car, modernizing fleet vehicles, or upgrading personal transport, this kit delivers the thermal stability and consistent modulation that only hydraulic disc brakes provide.

This rear conversion system features a single-piston caliper design paired with an 11-inch plain rotor mounted on an offset hat configuration, engineered to integrate seamlessly with GM 10-bolt and 12-bolt differential housings. The iron construction provides excellent heat dissipation and durability under sustained braking, while the plain rotor finish reduces weight and simplifies maintenance compared to cross-drilled alternatives. The offset hat design maximizes clearance and allows proper wheel fitment without modification, critical for vehicles running period-correct or modern wheel sizes. At 61.9 pounds, the complete kit balances sufficient mass for thermal capacity with manageable installation weight.

This conversion kit is ideal for Chevrolet, GMC, and Pontiac owners with 10-bolt or 12-bolt rear axles manufactured between the 1960s and early 1980s. Installation requires basic mechanical skill and standard tools; the offset hat design eliminates complex hub modifications, reducing downtime. Pair this rear kit with a front disc conversion system for complete braking modernization. Verify your specific axle configuration and available suspension clearance before ordering to ensure proper fitment and long-term reliability.