C6 Corvette Grand Sport DBA 4000 Series T3 Front Brake Rotors

C6 Corvette Grand Sport DBA 4000 Series T3 Front Brake Rotors

The DBA 4000 Series T3 Front Brake Rotors, part number DBA42992S, are direct-replacement performance rotors for 2010–2013 C6 Corvette Grand Sport Coupe and Convertible models with the factory J56 heavy-duty iron brake system and LS3 6.2L V8. This listing includes a complete pair of two 355 mm front rotors for installation with the original Grand Sport front calipers and mounting brackets.

Product Details

• Brand: DBA – Disc Brakes Australia
• Product Line: 4000 Series T3
• Product Type: Slotted front brake rotors
• Fitment: 2010–2013 C6 Corvette Grand Sport
• Brake Package: RPO J56 heavy-duty iron brakes
• Position: Front axle
• Included Quantity: Two front rotors, complete pair
• Part Number: DBA42992S per rotor
• Construction: One-piece vented rotor
• Rotor Material: High-carbon alloyed iron
• Surface: CNC-machined T3 slots
• Slot Design: Bi-directional
• Internal Ventilation: DBA Kangaroo Paw ventilation
• Brake Pads Included: No
• Shipping: $9.99 in the USA

Benefits

• Complete pair replaces both C6 Corvette Grand Sport front rotors
• Direct factory-size fitment for the J56 front brake system
• T3 slots help clear brake dust and friction gases from the pad surface
• Bi-directional design allows either rotor to be installed on either side
• High-carbon iron construction supports consistent braking through repeated heat cycles
• Kangaroo Paw ventilation promotes airflow and heat dissipation
• Thermal Stability Profiling helps improve rotor stability and durability
• Suitable for daily driving and demanding performance-street use

What to Expect

The DBA 4000 Series T3 is a factory-size, one-piece rotor upgrade rather than a big-brake conversion. It retains the original C6 Corvette Grand Sport J56 calipers and mounting points while adding DBA’s T3 slot pattern, high-carbon iron construction, and performance-focused heat-management features.

The T3 pattern is bi-directional, so DBA42992S does not require separate driver- and passenger-side part numbers.

Technical Specifications

• Outside Diameter: 355 mm / approximately 14 inches
• Rotor Thickness: 32 mm
• Minimum Thickness: 30 mm
• Overall Height: 45.5 mm
• Center Bore: 70.7 mm
• Bolt Pattern: 5 × 120.65 mm / 5 × 4.75 inches
• Rotor Weight: Approximately 26.5 pounds each
• Vane Design: DBA Kangaroo Paw vents

Installation Overview

The DBA42992S rotors install in the factory C6 Corvette Grand Sport front rotor locations and work with the original J56 front calipers and mounting brackets. No caliper relocation brackets or rotor adapters are required.

Install both rotors together, clean the rotor and hub mounting surfaces, inspect the 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 DBA42992S front brake rotors.
• Designed for 2010–2013 C6 Corvette Grand Sport models with factory RPO J56 iron brakes.
• Brake pads, calipers, brake fluid, hoses, and installation hardware are not included.
• These are factory-size one-piece rotors, not a two-piece rotor system or big-brake conversion.
• Aftermarket brake conversions may use different rotor dimensions.

CORVETTE COMPATIBILITY

• Generation: C6 Corvette
• Model Years: 2010–2013
• Model: Grand Sport
• Engine: LS3 6.2L V8
• Brake Package: RPO J56 heavy-duty iron brakes
• Brake Position: Front axle
• Body Styles: Coupe and convertible

Why Buy DBA C6 Corvette Grand Sport Brake Rotors From Custom Corvette Accessories?

Custom Corvette Accessories is enthusiast owned and operated, so correct Corvette brake fitment and clear ordering information matter. This package includes the complete pair of DBA42992S front rotors required for a C6 Corvette Grand Sport, rather than requiring customers to order two individually packaged rotors.