DISC / DRUM APPLICATIONS

If your truck runs front disc and rear drum brakes and you want improved stopping power without altering the factory look, this OE-Style Power Booster Conversion Kit is engineered specifically for the job. Designed for 1973–1987 Chevy & GMC trucks with disc/drum brake systems, this setup delivers reliable braking performance while maintaining an authentic, original-equipment appearance under the hood.

🛠 Original Equipment Look, Purpose-Built Function

• 11" OE-Style Dual Diaphragm Power Brake Booster
  Provides smooth, progressive vacuum assist similar to factory power brake systems, reducing pedal effort while maintaining excellent control and modulation.

• Cast Iron Master Cylinder (Disc / Drum Valved)
  OE-style cast iron construction with correct internal valving for front disc and rear drum brakes, including proper residual pressure for rear drums to ensure consistent engagement.

• Left-Side Mounted Brass Proportioning / Combination Valve Kit
  Factory-style brass valve mounted in the traditional left-side location, engineered to balance front disc pressure with rear drum braking for stable, predictable stops.

💪 Engineered as a Complete Disc / Drum System

Unlike mismatched aftermarket setups, this kit is designed as a matched hydraulic system, helping eliminate:

• Excessive pedal travel

• Rear brake delay or fade

• Front brake over-bias

The result is smooth pedal feel, consistent stopping power, and factory-like braking behavior.

🚚 Ideal for Stock & Factory-Style Builds

Perfect for:

• 1973–1987 Chevy & GMC C10 / C20 / C30 trucks

• Original front disc / rear drum configurations

• Stock restorations and daily drivers

• Subtle upgrades where OE appearance matters

✅ The Right Parts. The Right Balance.

If you’re upgrading or restoring a disc/drum Chevy truck and want a power brake conversion that looks and functions like it belongs there, this OE-style kit delivers dependable braking performance with factory-correct aesthetics.