The CPP Street Beast HydraStop Assembly is designed for 1947-53 Chevy and GMC Truck platforms and provides a firewall mounted hydraulic assist solution for swing pedal configurations. Early Advance Design trucks frequently transition from manual brakes to disc conversions and modern steering systems that benefit from improved brake assist. Hydraulic assist replaces vacuum operation and uses steering system pressure to produce up to 1800 psi at the wheels for consistent and confident stopping performance. The assembly includes the hydraulic assist unit, black direct mount bracket, AN6 fittings installed, and mounting hardware. Designed specifically for 1947-53 Chevy and GMC truck firewall installations seeking dependable hydraulic brake assist while retaining their chosen master cylinder and valve setup. HydraStop assemblies are new production units backed by a limited lifetime warranty when installed with proper filtration.
If you’re still running factory-style manual brakes on your 1947–53 Chevy truck, you already know the feeling, long pedal travel, heavy effort, and stopping power that just doesn’t match modern traffic. That’s where the CPP Street Beast HydraStop system changes everything.
This isn’t just another brake upgrade. It’s a modern hydraulic assist system designed to give your classic Chevy truck the kind of stopping power you expect from today’s vehicles, without compromising the clean firewall look or drivability.
