Girodisc Ford S197 Mustang Rear Rings
Refresh your Mustang’s braking system with Girodisc D2-081 rear replacement rings. Designed for the 328mm Girodisc two-piece rotor setup, these direct-fit rings bolt onto your existing Girodisc aluminum hats using the included floating hardware kit. Replace only the wear surface to maintain lightweight performance and save on long-term maintenance costs.
Vehicle Fitment
Compatible with:
• Ford Mustang GT (S197, 2005–2014, rear)
• Ford Mustang Boss 302 (2012–2013, rear)
• Ford Mustang Shelby GT500 (2007–2014, rear)
Note: For use with Girodisc 328mm two-piece rear rotor systems only. Not compatible with OEM one-piece or carbon-ceramic rotors.
Features
• Sold as a left/right pair and includes full hardware kit
• Direct replacements for Girodisc 328mm two-piece rear rotors
• CNC-machined from proprietary high-carbon cast iron
• Curved directional vanes enhance airflow and reduce fade
• Maintains OEM brake bias and ABS calibration
• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands
Specifications
• Diameter: 328mm
• Position: Rear
• Material: High-carbon cast iron
• Mount type: Floating two-piece system
• Includes: Two rings and full hardware kit
• Sold/priced per pair
Girodisc D2-081 Mustang Rear Replacement Ring FAQs
Can I use these with factory Ford rotors or hats? No. The D2-081 rings are designed exclusively for Girodisc two-piece rotor systems and won’t fit OEM rotors or hats.
Are these compatible with street and track pads? Yes. They work with all major pad brands, including Hawk, Ferodo, and G-LOC, for both street and track applications.
How often should I replace Girodisc rings? Replacement frequency depends on driving style — typically every 3–5 track weekends or 20,000–30,000 street miles under spirited use.
Do I need special torque specs when installing? Yes. Always follow Girodisc’s torque and Loctite specs for the included hardware to ensure proper float and long-term reliability.
Upgrade your Ford Mustang’s braking performance with Girodisc D2-081 328mm rear replacement rings — engineered for strength, cooling, and consistent pedal feel on both the street and the track.
