Firestone Coil-Rite Replacement Air Helper Spring 5.5 x 7 CR SVC (W237606006)

Aggressive engagement, quick shifts, mild to moderate gear rattle; Premium ceramic friction materials provide moderate wear rates and high heat tolerance; Utilizes wraparound spring windows, thicker retainer stampings and a heat-treated, spring steel drive plate to provide support, reduce stress concentrations and increase strength and reliability; Recommended for high horsepower street or race use; High burst strength and holds 28% more torque than typical organic materials