Girodisc Ford S550 Mustang Rear Rings
Refresh your Ford Mustang’s braking system with Girodisc D2-067 rear replacement rings. Designed for the 330mm Girodisc two-piece rotor system, these rings bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Replace only the wear surface for a cost-effective solution that maintains peak braking performance and reduces unsprung weight.
Vehicle Fitment
Compatible with:
• Ford Mustang GT (S550, 2015–2023, rear)
• Ford Mustang Bullitt (2019–2020, rear)
• Ford Mustang Shelby GT350 / GT350R (rear)
Note: For vehicles equipped with Girodisc 330mm two-piece rear rotor systems. Not compatible with OEM one-piece or carbon-ceramic rotors.
Features
• Sold as a left/right pair with full hardware kit
• Direct replacements for Girodisc 330mm two-piece rear rotors
• CNC-machined from high-carbon cast iron for strength and thermal control
• Directional curved vanes improve airflow and reduce fade
• Maintains OEM brake balance and ABS calibration
• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands
Specifications
• Diameter: 330mm
• Position: Rear
• Material: High-carbon cast iron
• Mount type: Floating two-piece system
• Includes: Two rings and new hardware kit
• Sold/priced per pair
• MSRP: $530.00
Girodisc D2-067 Mustang Rear Replacement Ring FAQs
Do these fit the factory Mustang brake setup? No. These are designed exclusively for Girodisc two-piece rotor systems and will not fit factory one-piece rotors.
Are these compatible with performance brake pads? Yes. They work with all major pad brands including Hawk, Ferodo, and G-LOC for both street and track use.
Can I install these with basic hand tools? Yes. If you already have Girodisc two-piece rotors, installation is straightforward with standard tools and a torque wrench.
How do these perform compared to OEM rotors? The Girodisc system offers improved cooling, lighter weight, and consistent pedal feel during repeated heavy braking.
Upgrade your Mustang’s braking performance with Girodisc D2-067 330mm rear replacement rings — engineered for superior heat control, strength, and confidence on both road and track.
