ATI Super Damper SFI 18.1 Harmonic Balancer - 7.48 in OD - Black - Internal Balance - GM LS-Series R07C152XL 540 lb/in Spring Rate

540 lb/in Spring Rate

75 in W x 19

washer and nut that seals against the inside of the wheel

Don't "drive through" your shocks with that big power

ATI Super Damper SFI 18.1 Harmonic Balancer - 7.48 in OD - Black - Internal Balance - GM LS-Series R07C152XL 540 lb/in Spring RateProduct Description: Harmonic Balancer Super Damper 7. 48 in OD SFI 18. 1 Steel Black Oxide Internal Balance GM LS Series Sold Individually ATI Performance Products is a company founded on innovation, precision and service. ATI harmonic Super Dampers add horsepower and torque to race, street and truck engines. ATI Performance Products is the creation of over 40 years of Transmission and performance component manufacturing and racing experience.