ATI Super Damper 2% Underdrive Harmonic Balancer ChevTruck 1999-09
street and race applications. Unlike factory pulleys, that offer no protection to high performance engines, the ATI Super Damper provides balanced dampening of torsional crankshaft vibrations at all RPM levels.
This balancer is a 2% underdrive damper to slow down your power steering & alternator but not enough of a reduction to effect the alternator output for street use. This damper features a 6 rib main belt and has an aluminum shell.
The damper comes with 360 laser-etched timing marks. All ATI Super Dampers exceed SFI 18.1 Safety Certification and are approved for competition use