Power Front Disc Brake Conversion Kit 2" Drop Spindle with 9" Chrome Booster Cast Iron Chrome Top M/C Adjustable Proportioning Valve for GM AFX

Upgrade your braking system with this LEED Brakes Power Front Drum-to-Disc Brake Conversion Kit, engineered to deliver improved safety, reliability, and consistent stopping performance. Designed specifically for GM AFX applications, this front disc brake upgrade replaces outdated factory drum brakes with modern single-piston disc brakes for stronger braking response and enhanced vehicle control.

This GM AFX power front disc brake conversion kit includes everything required to mount single-piston disc brake calipers directly to the control arms of your vehicle. All components used in these new front GM disc brakes for AFX cars are brand-new, high-quality, precision-machined products built to ensure proper fitment, durability, and long-term performance.

The system features 11-inch cast-iron front brake rotors with a standard rotor design and 1-inch thickness, providing dependable braking performance and effective heat management for street-driven and restored GM vehicles. Matched single-piston cast-iron calipers deliver reliable clamping force and feature a natural finish for a clean, factory-style appearance.

To support proper disc brake operation and balanced braking performance, this kit includes new front spindles, a master cylinder, and a power brake booster, supplying the correct hydraulic pressure and power assist needed for confident stopping. Brake lines are not included, allowing flexibility for custom routing or replacement based on your vehicle’s specific setup.

Designed to work with a minimum recommended wheel size of 14x7, this LEED Brakes power front disc brake conversion kit is compatible with a wide range of factory and aftermarket wheel configurations, making it a versatile solution for GM AFX owners looking to modernize their front braking system.

GM AFX Power Front Disc Brake Conversion Kit Specifications

• Position: Front

• Rotor Included: Yes

• Rotor Style: Standard

• Rotor Construction: Cast Iron

• Rotor Diameter: 11 in

• Rotor Thickness: 1 in

• Caliper Included: Yes

• Caliper Piston Quantity: 1

• Caliper Material: Cast Iron

• Caliper Finish: Natural

• Minimum Recommended Wheel Diameter: 14x7

• Spindles Included: Yes

• Master Cylinder Included: Yes

• Brake Booster Included: Yes

• Brake Lines Included: No

• Quantity: Complete Kit

Built for drivers seeking a dependable power front disc brake conversion for GM AFX vehicles, this LEED Brakes kit delivers a proven combination of performance, reliability, and straightforward installation—ideal for street builds, restorations, and classic GM upgrades.

Click here to learn more about why LEED Brakes has added this warning to their products.