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Vehicle Info NeededLEED BRAKESPART NUMBER: 633-776B4
1967-1972 GM Truck Power Brake Master Cylinder & Booster Kit
$51299$569.99You Save$57.00
Ships on 09/14/2026
Lowest Price GuaranteeGM Chrome 7 in. Dual Boosters
Power Brake Master Cylinder & Booster Kit1967-1972 GM Truck w/Automatic Transmission Chrome Flat Top 1 1/8 in. Master Cylinder Chrome 7 in. Dual Booster Chrome Disc/Disc Proportioning Valve
LEED Brakes 776B4 Features:
New 7" Dual Diaphragm chrome plated power brake booster, master cylinder & disc/disc proportioning valve combo. This 7" power booster is hand polished before a chrome 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 chrome 1-1/8" bore flat top master cylinder and proportioning valve equipped to work with 4 wheel disc applications.- New unit not remanufactured
- Includes brackets and pushrod
Part TypeBrake Master Cylinder and Booster Assembly
BrandLEED BRAKES
Package Height10.4
Package Width13.6
Package Length20.8
Weight21.13 PG
Part CategoryPerformance Parts
Brake Booster FinishChrome
Bracket IncludedYes
Brake Booster TypeDual Diaphragm
Master Cylinder FinishChrome
Housing MaterialSteel
Brake Booster IncludedYes
Master Cylinder Bore Size1-1/8 in
Mounting Hardware IncludedNo
Master Cylinder Port Quantity4
Brake Booster Diameter7 in.
Booster Housing Diameter7 in.
Bleeder Hoses IncludedYes
Brake Pedal Pushrod IncludedYes
Master Cylinder MaterialAluminum
Master Cylinder Cap IncludedYes
Booster Diaphragm TypeDual
Brake Lines IncludedFrom Master Cylinder to Valve
Booster TypeVacuum
Master Cylinder IncludedYes
Part FitmentSemi Universal
Vendor Part Number776B4
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
