C7 Corvette Grand Sport DBA 5000 Series T3 Front Brake Rotor Rings
The DBA 5000 Series T3 Front Brake Rotor Rings, part numbers DBA52770.1LS and DBA52770.1RS, are direct-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 front pair with one left-side ring and one right-side ring. The original Brembo aluminum rotor hats are reused and are not included.
Product Details
- Brand: DBA – Disc Brakes Australia
- Product Line: 5000 Series T3
- Product Type: Front replacement brake rotor rings
- Fitment: 2017–2019 C7 Corvette Grand Sport
- Brake Package: RPO J56 iron brakes
- Position: Front axle
- Left Part Number: DBA52770.1LS
- Right Part Number: DBA52770.1RS
- Construction: Vented high-carbon iron friction rings
- Surface: CNC-machined T3 slots
- Internal Ventilation: Directional curved vanes
- Rotor Hats Included: No
- Brake Pads Included: No
- Shipping: $9.99 in the USA
Benefits
- Select the correct left and right rings for a complete Grand Sport front brake service
- Reuses the original two-piece Brembo aluminum rotor hats
- T3 slots help clear brake dust and friction gases from the pad surface
- Curved internal vanes support airflow and heat dissipation during repeated braking
- High-carbon iron construction is designed for demanding street and performance use
- Restores the iron friction surfaces without requiring complete replacement rotor assemblies
- Retains the factory 370 mm Grand Sport front brake dimensions
What to Expect
These are replacement friction rings for the factory two-piece C7 Corvette Grand Sport front rotors. They do not include new center hats or complete assembled rotors. The original Brembo hats must be removed from the worn rings and installed onto the new DBA rings using the correct assembly procedure and hardware.
The visible T3 slot design is bi-directional, but the curved internal cooling vanes make the rings side-specific. DBA52770.1LS installs on the left front, and DBA52770.1RS installs on the right front.
Technical Specifications
- Outside Diameter: 370 mm / approximately 14.6 inches
- Rotor Thickness: 34 mm
- Minimum Thickness: 32 mm
- Ring Height: 34 mm
- Centering Diameter: 191 mm
- Mounting Holes: 10
- Mounting Bolt Circle: 215 mm
- Vane Design: Directional curved vents
- Surface Design: T3 slotted
- Side Configuration: One left ring and one right ring
Installation Overview
Installation requires disassembling the factory two-piece front rotors, removing the original iron rings, and transferring the factory Brembo aluminum hats to the DBA replacement rings. The hats and mounting hardware are not included with this package.
Because rotor-ring assembly affects brake safety, runout, balance, and hardware torque, installation should be completed by a qualified technician familiar with serviceable two-piece brake rotors. Install both rings together and follow the correct brake-pad bedding procedure after installation.
Important Notes
- This listing is for a front pair. Quantity one includes one DBA52770.1LS left ring and one DBA52770.1RS right ring.
- These are replacement friction rings only, not complete assembled brake rotors.
- The factory Brembo aluminum hats and mounting hardware are not included.
- 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.
- The rings are side-specific because of the directional curved internal vanes.
- Brake pads, calipers, brake fluid, hoses, and installation tools 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: Front 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 side-specific DBA front rings required for a C7 Corvette Grand Sport with J56 brakes, eliminating the need to locate and order the left and right part numbers separately.
✅ 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.