American-made SSBC-USA Kelsey Hayes 4-piston front disc brake conversion kit with caliper and rotors, non-power system.
American-made SSBC-USA Kelsey Hayes front disc brake conversion kit with four-piston calipers and rotors, non-power brake system
American-made SSBC-USA Kelsey Hayes 4-piston front disc brake conversion kit with rotors, non-power brake system.
Front disc brake conversion kit by SSBC-USA with rotors and 4-piston calipers for American-made vehicles.
American-made SSBC-USA Kelsey Hayes 4-piston front disc brake conversion kit with caliper and rotors, non-power system.
American-made SSBC-USA Kelsey Hayes front disc brake conversion kit with four-piston calipers and rotors, non-power brake system
American-made SSBC-USA Kelsey Hayes 4-piston front disc brake conversion kit with rotors, non-power brake system.
Front disc brake conversion kit by SSBC-USA with rotors and 4-piston calipers for American-made vehicles.

1970-1974 Ford & Mercury Kelsey-Hayes 4-Piston Non-Power Front Disc Brake Kit | A133-2.

SKU- A133-2

$1,336.00
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Shipping calculated at checkout.

Kelsey-Hayes Non-Power Front Drum-to-Disc Brake Conversion Kit

Convert compatible 1970-1974 Ford and Mercury front drum brake systems with the SSBC-USA A133-2 Kelsey-Hayes-style non-power front disc brake conversion kit. This system uses 4-piston cast-iron calipers and includes the major hydraulic and mounting components needed for a properly matched manual-brake conversion.

Key Features

  • 4-piston Kelsey-Hayes-style front calipers
  • Black E-coat caliper finish
  • Heavy-duty front rotors
  • Designed for compatible non-power front drum-to-disc conversions
  • Fits select 1970-1974 Ford and Mercury classics, including Mustang, Maverick, Fairlane, Torino, Cougar, Comet, and Falcon
  • SSBC-USA part number: A133-2

What’s Included

  • 4-piston cast-iron front calipers
  • Heavy-duty front rotors
  • Semi-metallic brake pads
  • Dual-bowl manual-disc master cylinder
  • Adjustable proportioning valve
  • DOT flex hoses
  • Splash shields and backing plates
  • Required installation hardware

Vehicle Fitment

Ford and Mercury: Select 1970-1974 applications using compatible V8 drum brake spindles and a non-power brake configuration.

✔ Fitment Confidence: This kit is designed for the compatible Ford and Mercury applications listed above. Not 100% sure about your spindle type, wheel clearance, current brake setup, or previous modifications? 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 will not bolt to the stock booster on vehicles originally equipped with power drum brakes. Confirm your manual-brake configuration before ordering.

Wheel and Installation Notes

This system fits many 15-inch wheels and select factory-style 14 x 7-inch disc brake wheels when clearance is confirmed. Professional installation is recommended. Confirm spindle compatibility, wheel clearance, brake-line routing, master-cylinder setup, 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.