Rear disc brake conversion kit with black rotors from SSBC-USA, includes drum to disc brake conversion components.
Rear disc brake conversion kit by SSBC-USA with black A112BK-DS rotors and components for direct fit upgrade.
Rear disc brake conversion kit with rotors from SSBC-USA, featuring black components for a direct fit upgrade.
Rear disc brake conversion kit with rotors for black SSBC-USA A112BK, includes drum to disc conversion components, shown on wheel.

1979-1986 Ford Mustang 4-Lug Rear Disc Brake Conversion Kit, Black, DS Rotors | A112BK-DS.

SKU- A112BK-DS

Regular price $865.00
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Shipping calculated at checkout.

Rear Drum-to-Disc Brake Conversion Kit with DS Rotors for 1979-1986 Ford Mustang

Convert compatible 1979-1986 Ford Mustang factory 4-lug rear drum brake systems with the SSBC-USA A112BK-DS rear disc brake conversion kit. This upgraded package uses single-piston rear calipers with built-in parking brakes and 10.25-inch dimple-drilled, slotted, and plated rear rotors for a performance-focused appearance and improved heat and debris management while retaining the factory-style 4-lug setup.

Key Features

  • Single-piston rear calipers in black finish
  • Built-in parking brake mechanism
  • 10.25-inch dimple-drilled, slotted, and plated rear rotors
  • Retains compatible factory-style 4-lug configuration
  • Designed for select 1979-1986 Ford Mustang rear axle applications
  • Fits many 14-inch wheels when clearance is confirmed
  • SSBC-USA part number: A112BK-DS

What’s Included

  • Left and right rear calipers
  • 10.25-inch DS rear rotors
  • Semi-metallic brake pads
  • Caliper mounting brackets
  • Parking-brake-related components
  • Required installation hardware

Vehicle Fitment

Ford Mustang: Select 1979-1986 4-lug rear axle applications, including compatible 4-cylinder and 8-cylinder cars.

✔ Fitment Confidence: This kit is designed for the compatible 1979-1986 Mustang applications listed above. Not 100% sure about your axle housing, axle flange, 4-lug setup, wheel clearance, parking-brake configuration, 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.

Installation Notes

Professional installation is recommended. Confirm axle and flange compatibility, wheel clearance, parking-brake cable routing, brake-line routing, master-cylinder sizing, 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.