ATI LS6 6.75 Harmonic Damper SFI RS003C0910 Polyurethane Base and Top:

Polyurethane Base and Top:

and then determine the length you need to wrap around a rollbar in the door

cylinder mounting rings

8 in Square Door

1994-2003 Pontiac Grand Am

ATI LS6 6.75 Harmonic Damper SFI RS003C0910 Polyurethane Base and Top:Product Description: Harmonic Balancer Serpentine Super Damper 6. 780 in OD SFI 18. 1 Aluminum Steel Black 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