ARC Performance 1955-1958 GM Zinc Power Brake Booster Upgrade Kit.
Modern Braking Power. Classic GM Style.
Upgrade your classic 1955–1958 GM vehicle with this Zinc Power Brake Booster Upgrade Kit, designed to deliver smoother stopping power while preserving an authentic vintage appearance.
Built for reliability and performance, this kit improves braking response and pedal feel—making your classic safer and more enjoyable to drive.
Features & Benefits:
✔ Fits 1955–1958 GM applications
✔ Durable zinc-plated brake booster for corrosion resistance
✔ Improved stopping power over manual brake setups
✔ Smoother pedal feel and reduced driver effort
✔ Ideal for restorations, restomods, and daily cruisers
Why Upgrade?
Original braking systems weren’t designed for modern traffic. This power brake booster upgrade provides the confidence and control you need while keeping the classic look your GM deserves.
📦 Direct-fit design – no unnecessary modifications
🔧 Built for long-term performance
Stop safer. Drive smarter. Keep it classic.
Kit Includes:
- Zinc 8 inch dual diaphragm brake booster
- Zinc booster to firewall bracket
- Cast master cylinder with 1 inch bore (suit disc/drum) or 1-1/8 inch bore (suit disc/disc)
- Brass proportioning valve to suit
- Zinc under master cylinder bracket for prop valve
- Master cylinder to proportioning valve lines/fittings
- Extension rod and clevis
