1964½-1966 Ford Mustang 4-Lug Power Front Disc Brake Conversion Kit, Automatic | A120-5.
4-Lug Power Front Drum-to-Disc Brake Conversion Kit
Convert compatible 1964½-1966 six-cylinder Ford Mustang front drum brake systems with the SSBC-USA A120-5 power front disc brake conversion kit. This system retains the compatible stock 4-lug drum brake spindle configuration while adding single-piston cast-iron calipers, 10.25-inch vented rotors, a 7-inch booster, dual-reservoir master cylinder, and the major components needed for a properly matched automatic-transmission conversion.
Key Features
- Single-piston cast-iron front calipers
- 10.25-inch vented front rotors
- Designed for compatible six-cylinder, 4-lug Mustang applications
- Uses compatible stock 4-lug drum brake spindles
- 7-inch power brake booster
- Automatic-transmission application
- SSBC-USA part number: A120-5
What’s Included
- Single-piston cast-iron front calipers
- 10.25-inch vented front rotors
- Semi-metallic brake pads
- 7-inch power brake booster
- Dual-reservoir master cylinder
- Adjustable proportioning valve
- E-coated mounting brackets
- DOT flex hoses
- Required installation hardware
Vehicle Fitment
Ford Mustang: Select 1964½-1966 six-cylinder, 4-lug models with automatic transmission, compatible stock drum brake spindles, and sufficient wheel clearance.
✔ Fitment Confidence: This kit is designed for compatible six-cylinder, 4-lug automatic-transmission Mustang applications. Not 100% sure about your lug pattern, spindle type, transmission, pedal setup, wheel clearance, or current brake system? Call our tech team at (716) 775-6700 before you order. We’ll help confirm the correct application details so you can buy with confidence.
Important Compatibility Note
This kit is intended for compatible automatic-transmission vehicles. Confirm transmission type, pedal assembly, firewall mounting pattern, and available clearance before ordering.
Wheel and Installation Notes
This system fits many 15-inch wheels when clearance is confirmed. Professional installation is recommended. Confirm spindle compatibility, wheel clearance, brake-line routing, booster and master-cylinder setup, pedal configuration, and proportioning requirements before installation. The system must be properly bled and the pads and rotors correctly bedded after installation.
🚚 Shipping: This item is configured to order at our Elma, NY facility — production and configuration typically take 5–10 business days. Supply constraints can occasionally cause temporary delays beyond this window. Need an update on your order? Contact us at (716) 775-6700 or orders@ssbc-usa.com with your order number and we’ll get you an answer right away. Your exact shipping cost is calculated at checkout based on your address.
