Rear Disc Brake Conversion Kit with 4-Lug Compatibility for 1979-1986 Ford Mustang Fox Body 7.5 & 8.8 Axles

Upgrade Your 1979-1986 Fox Body Mustang with a High-Performance Rear Disc Brake Conversion

Enhance your Fox Body Mustang's braking performance with LEED Brakes’ rear disc brake conversion kit, engineered for 1979-1986 Ford Mustang models with 7.5 & 8.8 rear axles and 4-lug compatibility. This drum-to-disc brake upgrade replaces outdated drum brakes with precision-machined disc brakes, significantly improving stopping power, safety, and durability.

Designed for direct bolt-on installation, this kit utilizes factory mounting points, making installation simple and hassle-free. 

1979-1986 Ford Mustang Fox Body Rear Disc Brake Conversion Kit Key Features & Benefits:

• Enhanced Braking Power – Single-piston calipers with 54mm pistons for increased stopping force.


• 4-Lug Compatibility – Specifically designed for 1979-1986 Fox Body Mustang rear axles.


• 11-inch Vented Rotors – Better cooling and increased rotational torque.


• Durable Zinc-Plated Components – Protects against rust and extends the life of your braking system.


• Heavy-Duty Parking Brake Caliper – Increased clamping force vs other smaller calipers.


• Easy Installation – Direct bolt-on design for seamless fitment.

Comparison: LEED Brakes vs. Other Rear Disc Brake Options

This comparison highlights the superior braking power, heat dissipation, and durability of the LEED Brakes Fox Body rear disc brake conversion kit over common alternatives.

Vehicle Fitment:

• Ford Mustang Fox Body (1979-1986) – 7.5 & 8.8 Rear Axles with 4-Lug Compatibility

Fox Body Rear Disc Brake Conversion Kit Product Specifications:

• Position: Rear


• Rotor Style: Standard


• Rotor Diameter: 11 inches


• Rotor Thickness: 1 inch


• Bolt Pattern: 4 x 108mm


• Caliper Piston: 54mm Single-Piston, Cast Iron with Zinc Plating


• Minimum Recommended Wheel Size: 15x7 inches


• Parking Brake: Included


• Installation: Direct Bolt-On


• Fitment Note: Check axle housing flange dimensions before purchasing (see Photo #2).

Why Upgrade to Rear Disc Brakes for Your Fox Body Mustang?

Factory drum brakes on 1979-1986 Fox Body Mustangs are prone to fading, uneven braking, and reduced performance under high-speed conditions. LEED Brakes’ rear disc brake conversion kit provides:

• Consistent Braking Power – Eliminates drum brake fade.


• Improved Heat Dissipation – Vented rotors reduce overheating.


• Enhanced Safety & Control – Smoother, more predictable braking performance.