CPP Street Beast Complete HydraStop Hydraulic Brake Booster Kit Frame Mount Chevy/ GMC Truck 55-59
Highlights
- Hydraulic Brake Assist
- Up to 1,800 PSI
- Frame-Mount Design
- Factory Pedal Compatible
CPP Street Beast Complete HydraStop Hydraulic Brake Booster Kit for 1955-1959 Chevy and GMC trucks with frame-mounted brake configurations.
Upgrade the braking performance of your 1955-1959 Chevy or GMC truck with this CPP Street Beast Complete HydraStop Kit. Designed for frame-mounted installations, this hydraulic brake assist system uses power steering pressure instead of engine vacuum to deliver consistent stopping assistance. Capable of producing up to 1,800 PSI of braking pressure, the HydraStop system is an excellent upgrade for classic trucks equipped with compatible two-wheel disc brake conversions and modern power steering systems.
Features and Benefits:
- Fits 1955-1959 Chevy and GMC trucks with compatible frame-mounted brake systems
- Hydraulic brake assist eliminates dependence on engine vacuum
- Uses power steering pressure to provide increased braking assistance
- Delivers up to 1,800 PSI of braking pressure
- Direct-fit, bolt-in upgrade for compatible two-wheel disc brake configurations
- Frame-mounted design retains the factory brake pedal and pedal geometry
- Eliminates the need for a firewall-mounted swing pedal conversion
- Includes frame mounting bracket assembly and installation hardware
- Aluminum master cylinder features a 1-1/8" bore and driver-side ports
- Black Corvette-style master cylinder lid enhances appearance
- Black accumulator cover complements the Street Beast finish
- Rubber high-pressure hoses and hydraulic return lines included
- AN6 fittings provide hydraulic system connections
- Driver-side adjustable proportioning block supports brake pressure adjustment
- Manufactured with brand-new components
- Limited lifetime warranty when installed with proper hydraulic filtration
The Street Beast configuration provides dependable hydraulic braking assistance while retaining the factory brake pedal and original pedal geometry. Its frame mounting bracket supports an aluminum master cylinder featuring a 1-1/8" bore and black Corvette-style lid. Complete with rubber high-pressure hoses, return lines, AN6 fittings, an adjustable proportioning block, and mounting hardware, this kit offers a comprehensive brake system upgrade backed by a limited lifetime warranty when installed with proper hydraulic filtration.
Kit Includes:
- CPP Street Beast HydraStop Hydraulic Brake Booster
- Aluminum Master Cylinder with 1-1/8" Bore and Driver-Side Ports
- Black Corvette-Style Master Cylinder Lid
- Frame Mounting Bracket Assembly
- Black Accumulator Cover
- Driver-Side Adjustable Proportioning Block
- Rubber High-Pressure Hydraulic Hoses
- Hydraulic Return Lines
- AN6 Fittings
- Mounting Hardware
Vehicle Fitment:
- 1955-1959 Chevy 3100/3200/3600/3800 (Task-Force)
- 1955-1959 GMC 150/250 (Blue-Chip)
*Designed for frame-mounted brake systems utilizing the factory brake pedal, and compatible two-wheel disc brake applications.
California Residents: Proposition 65 Warning
Related Categories: 1947-1959 GMC Truck Parts, 1947-1959 Chevrolet Truck Parts
Installation Difficulty

Intermediate skill is required for this installation.
Installation Instructions
Vehicle Fitment
This product will fit the following 47-59 Chevy Truck years:
- 1955,
- 1956,
- 1957,
- 1958,
- 1959,
This product will fit the following 47-59 GMC Truck years:
- 1955,
- 1956,
- 1957,
- 1958,
- 1959,













