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Vehicle Info NeededLEED BRAKESPART NUMBER: 633-761A3
1967-1972 GM Trucks Power Brake Master Cylinder & Booster Kit
$44999$499.99You Save$50.00
Ships on Sep 14, 2026
Lowest Price GuaranteeGM Zinc 7 in. Dual Boosters
Power Brake Master Cylinder & Booster Kit1967-1972 GM Trucks Cast Iron 1 1/8 in. Master Cylinder Zinc 7 in. Dual Booster Zinc Disc/Disc Proportioning Valve
LEED Brakes 761A3 Features:
New 7" Dual Diaphragm zinc plated power brake booster, master cylinder & disc/drum proportioning valve combo. This 7" power booster is hand polished before a zinc finish is applied for a top quality finish. The black powder coated mount and pushrod assembly is a direct fit to your factory firewall for that fresh factory look. Also included in this kits is a new 1-1/8" bore master cylinder and proportioning valve equipped to work with 4 Wheel Disc applications.- New unit not remanufactured
- Includes brackets and pushrod
Optimize the Stopping Power of Your Brakes
Leed Power Brake Master Cylinder and Booster Kits are designed to transform the manual brake system on your classic muscle car by increasing braking response while keeping OE-styling. Trust Leed to improve the performance and safety of your brakes.
Part TypeBrake Master Cylinder and Booster Assembly
Product LineLeed Power Brake Master Cylinder & Booster Kits
BrandLEED BRAKES
Package Height10.5
Package Width10.5
Package Length18.25
Weight28.0 PG
Part CategoryPerformance Parts
Brake Booster FinishZinc
Bracket IncludedYes
Brake Booster TypeDual Diaphragm
Master Cylinder FinishNatural
Housing MaterialSteel
Brake Booster IncludedYes
Master Cylinder Bore Size1-1/8 in
Mounting Hardware IncludedNo
Master Cylinder Port Quantity2
Brake Booster Diameter7 in.
Booster Housing Diameter7 in.
Bleeder Hoses IncludedYes
Brake Pedal Pushrod IncludedYes
Master Cylinder MaterialCast Iron
Master Cylinder Cap IncludedYes
Booster Diaphragm TypeDual
Brake Lines IncludedFrom Master Cylinder to Valve
Booster TypeVacuum
Master Cylinder IncludedYes
Part FitmentSemi Universal
Vendor Part Number761A3
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
