Rotor GT36 SPC37 LH 11.75 x .810 8 on 7in

The Rotor GT36 SPC37 LH 11.75 x .810 8 on 7in from Wilwood is a premium driver-side brake rotor engineered for high-performance vehicle builds and serious brake system upgrades. This directional, slotted rotor is purpose-built for enthusiasts who demand consistent stopping power under extreme conditions—whether you're running a track-focused street car, a competition vehicle, or a custom build where fade resistance and heat dissipation matter. The GT36 profile delivers the thermal management and bite needed when OEM rotors fall short of your performance demands.

Manufactured from high-carbon iron, this rotor features a directional slot design that actively evacuates brake dust, gases, and moisture away from the friction surface, maintaining consistent pad contact and reducing glazing—critical for prolonged braking performance. At 11.750 inches in outer diameter and 0.813 inches thick, the Rotor GT36 SPC37 accommodates an 8 x 7.000 inch bolt pattern and weighs 9.7 lbs per unit, making it suitable for mid-size to full-size platform conversions. The natural finish iron construction provides excellent thermal conductivity, allowing heat to dissipate rapidly during sustained braking cycles, preventing the fade that plagues street applications pushed to their limits.

This left-hand (driver-side) rotor is ideal for custom brake system retrofits, vintage hot rods, and modern performance cars undergoing suspension or brake geometry changes. Installation requires proper hub and caliper compatibility with the 8 x 7-inch bolt circle; verify your caliper bracket clearance against the rotor's thickness before ordering. Pair this rotor with performance brake pads rated for high temperatures and a properly bled system for optimal results. Each rotor is sold individually, so plan to purchase a matching right-side unit to complete your brake system upgrade and ensure balanced stopping power across both wheels.