8in Dual Zinc Booster 67 -72 Chevy Truck 1-1/8in

The LEED Brakes 8in Dual Zinc Booster with 1-1/8in bore is a complete master cylinder and booster assembly engineered for 1967–72 Chevy trucks and full-size GM vehicles. This dual diaphragm brake booster delivers increased pedal assist while the integral dual reservoir design simplifies plumbing and reduces potential leak points—critical considerations for classic truck restoration and brake system upgrades where reliability and consistent modulation are non-negotiable.

The 1-1/8 inch bore master cylinder provides proportional hydraulic pressure distribution across dual circuits, a fundamental safety requirement for modern stopping performance on vintage platforms. The steel construction is finished in gold zinc plating, a corrosion-resistant coating that protects against rust and extends service life in both dry garages and vehicles exposed to road salt and moisture. The 8-inch outer diameter fits within original mounting constraints on classic truck firewall designs, preserving authenticity while upgrading braking function. Dual diaphragm technology reduces brake pedal effort during emergency stops and enhances vacuum assistance consistency across varying engine loads.

This assembly serves builders and restorers upgrading factory brake systems on Chevy trucks from the late 1960s and early 1970s—vehicles originally equipped with smaller, less responsive boosters. Whether converting a truck for modern street use, improving stopping power for towing capacity, or installing a contemporary brake system within original parameters, this booster-and-cylinder combination addresses both performance and fitment constraints. The kit format supplies all essential components in one purchase, streamlining sourcing and ensuring mechanical compatibility.

LEED Brakes specializes in brake system solutions for classic American trucks and SUVs, focusing on drop-in upgrades that preserve original aesthetics while delivering contemporary stopping efficiency. This dual zinc-plated booster represents the brand's commitment to corrosion resistance and functional longevity for vehicles operated in variable climates and terrain.