GM AFX Power Front Disc Brake Conversion Kit with 2″ Drop Spindles & 9″ Chrome Booster

Upgrade your braking system with this LEED Brakes power front drum-to-disc brake conversion kit, designed to improve safety, reliability, and overall stopping performance. This pre-built General Motors front disc brake conversion replaces outdated drum brakes with modern single-piston disc brakes, delivering stronger braking response, improved pedal feel, and more consistent stopping power.

This 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 pre-built General Motors brake kits are brand-new, high-quality, precision-machined parts engineered for proper fitment, durability, and long-term performance.

The system features 11-inch cast-iron front brake rotors with a cross-drilled and slotted design and zinc plating to help reduce brake fade and improve braking efficiency. Cross-drilled and slotted rotors allow gases that build up between the brake pad and rotor during heavy braking to escape more effectively. This improves pad-to-rotor contact, resulting in increased braking power and more consistent performance—while also adding an aggressive, performance-focused appearance.

Matched single-piston cast-iron calipers provide dependable clamping force and feature a natural finish for a clean, factory-style look. To complete the system, this kit includes new front spindles, a master cylinder, and a power brake booster, ensuring proper hydraulic pressure and power assist for confident disc brake operation. Brake lines are not included, allowing flexibility for custom routing or replacement based on your vehicle’s 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 upgrade for many classic and performance-oriented GM vehicles.

GM AFX Power Front Disc Brake Conversion Kit Specifications

• Position: Front

• Rotor Included: Yes

• Rotor Style: Cross Drilled and Slotted

• 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 looking to modernize their front braking system, this LEED Brakes power front disc brake conversion kit delivers a proven combination of performance, durability, and visual appeal for street-driven classics and restored GM builds alike.

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