C7 Corvette Grand Sport DBA 5000 Series T3 Rear Brake Rotor Rings
The DBA 5000 Series T3 Rear Brake Rotor Rings, part number DBA52771.1S, are replacement friction rings for 2017–2019 C7 Corvette Grand Sport Coupe and Convertible models with the factory J56 iron brake system and LT1 6.2L V8. This listing includes a complete pair of two 365 mm rear rotor rings for both sides of the rear axle. The compatible factory two-piece rear rotor hats are reused and are not included.
Product Details
- Brand: DBA – Disc Brakes Australia
- Product Line: 5000 Series T3
- Product Type: Rear replacement brake rotor rings
- Fitment: 2017–2019 C7 Corvette Grand Sport
- Brake Package: RPO J56 iron brakes
- Position: Rear axle
- Included Quantity: Two rear rotor rings, complete pair
- Part Number: DBA52771.1S per ring
- Construction: Vented high-carbon iron friction rings
- Surface: CNC-machined T3 slots
- Slot Design: Bi-directional
- Internal Ventilation: DBA Kangaroo Paw ventilation
- Rotor Hats Included: No
- Brake Pads Included: No
- Shipping: $9.99 in the USA
Benefits
- Includes two rings for a complete C7 Corvette Grand Sport rear brake service
- Replaces the worn iron friction surfaces while reusing compatible two-piece rotor hats
- T3 slots help clear brake dust and friction gases from the pad surface
- Bi-directional design allows either ring to be used on either rear side
- High-carbon iron construction supports consistent braking through repeated heat cycles
- Kangaroo Paw ventilation promotes airflow and heat dissipation
- Retains the factory 365 mm J56 rear brake dimensions
What to Expect
These are replacement friction rings, not complete assembled brake rotors. The compatible center hats must be removed from the existing two-piece rear rotor assemblies and transferred to the new DBA rings.
Both rear sides use the same DBA52771.1S part number. The T3 slot pattern and Kangaroo Paw ventilation are bi-directional, so separate left- and right-side ring variants are not required.
Technical Specifications
- Outside Diameter: 365 mm / approximately 14.4 inches
- Rotor Thickness: 26 mm
- Minimum Thickness: 24 mm
- Ring Height: 26 mm
- Centering Diameter: 216 mm
- Mounting Holes: 10
- Mounting Bolt Circle: 240 mm
- Vane Design: DBA Kangaroo Paw vents
- Surface Design: T3 slotted
Installation Overview
Installation requires disassembling the compatible two-piece rear rotors, removing the worn friction rings, and transferring the existing center hats to the new DBA rings. Because two-piece rotor assembly affects runout, fastener torque, balance, and brake safety, installation should be completed by a qualified technician familiar with serviceable rotor assemblies.
Install both rings during the same brake service, inspect the rear brake pads and caliper hardware, and follow the DBA and brake-pad manufacturer bedding procedures after installation.
Important Notes
- This listing is for a pair. Quantity one includes two DBA52771.1S rear rotor rings.
- These are replacement friction rings only, not complete assembled brake rotors.
- The compatible rear rotor hats are reused and are not included.
- These rings require compatible two-piece rear rotor hats and cannot be installed in place of one-piece service rotors.
- Fits C7 Corvette Grand Sport models with factory RPO J56 iron brakes.
- Does not fit RPO J57 carbon-ceramic brakes or the Z07 Performance Package.
- Brake pads, calipers, brake fluid, hoses, and other brake components are not included.
CORVETTE COMPATIBILITY
- Generation: C7 Corvette
- Model Years: 2017–2019
- Model: Grand Sport
- Engine: LT1 6.2L V8
- Brake Package: RPO J56 iron brakes
- Excluded Brake Package: RPO J57 carbon-ceramic brakes
- Brake Position: Rear axle
- Body Styles: Coupe and convertible
Why Buy DBA C7 Corvette Grand Sport Rotor Rings From Custom Corvette Accessories?
Custom Corvette Accessories is enthusiast owned and operated, so correct Corvette brake-package fitment and clear ordering information matter. This package includes both DBA52771.1S rear friction rings required for a C7 Corvette Grand Sport with J56 brakes, rather than requiring customers to order two individually packaged rings.
✅ In-stock items ship within 24–48 hours via Standard Ground.
✅ Free shipping items are available in the Continental US only.
✅ Custom quotes available for 2-Day, Next Day, or Saturday delivery.
✅ Custom or backordered items ship as soon as available.