Baer Brakes Rear Disc Brake Conversion Kit SS4 Plus 11" Small Bearing 8"/9" 1965-1973

CJ's Part Number:

Baer Brakes 11" SS4 Plus Rear Disc Brake Conversion Kit for all 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972 and 1973 Mustangs with a Small Bearing 8" or 9" Rear End.

This Rear Disc Brake Conversion Kit from Baer Brakes is the perfect system for someone looking to upgrade the braking system in their 1965-1973 Mustang with a small bearing 8" or 9" rear end. Designed to fit under either 15" or 16" wheels or larger, you can choose a larger wheel but keep the option to go back to the classic stock look. This kit comes with everything you need to install this improved rear disc brake kit on your 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972 or 1973 Mustang.

System Includes:
- Pair of Baer forged two-piece calipers
- Pair of two-piece 11" diameter rotors
- Stainless steel pistons, abutments and noise suppression springs
- Dual seals (dust/weather and pressure) that meet D.O.T specifications
- High performance Baer DecelaPad Ceramic Brake Pads
- All necessary mounting brackets and hardware
- Stainless steel braided hoses with vehicle specific fittings
- Aluminum one-piece bracket that acts as a bearing retainer
- Instructions

Caliper Specs:
- Type of Caliper: Two-piece with four cross bolts for maximum stiffness
- Number of Pistons: Four
- Construction: High alloy forged billet aluminum

Calipers are available with a Black Powder Coat, Red Powder Coat, Silver Powder Coat or a Red Powder Coat finish with a Shelby Logo.

Rotor Specs:
- Diameter: 11" x 1" two-piece
- Vented: Directionally curved vane
- Standard Finish: Slotted, Drilled and Zinc Plated

*Check the "Installation Instructions" tab for a fitment template.

Please Note: This kit does NOT come with a parking brake system.

A vehicle's production brake system is adequate for the everyday, average driver but if you drive your car harder than the manufacturer intended, you will over work the system. When you pair your vehicle with the correct brake setup you will see better lap times at track day competitions and even short events such as auto-cross events. Baer has participated in every type of racing and performance activity. Baer is the brand most recognized among serious performance vehicle owners because they work better and deliver the best performance value.

Installation Difficulty


Intermediate skill is required for this installation.

Vehicle Fitment

This product will fit the following Mustang years:

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