ATI 10% Underdrive Super Damper Harmonic Balancer for 1999-2013 GM Truck/SUV, Trailblazer SS (TBSS), and 2010-2015 Camaro SS - 918629
Are you looking for maximum engine protection and performance for your serpentine belt application? These ATI Super Damper serpentine harmonic balancers contain grooves for serpentine belts machined into the outer damper shell. The dampers come standard with six outer grooves for standard OEM drive systems. Specifically designed for high-rpm engines, they're tuned to eliminate the harmful crankshaft harmonics that cause parasitic horsepower loss. They're tunable in the field, rebuildable, and extremely efficient at all rpm.
This balancer is SFI Approved. ATI's underdrive balancer uses stock diameter a/c belt drive. An underdrive balancer frees up additional horsepower by reducing parasitic drag from the accessory drive through slowing down the belt drive and reducing drag.
This part number is compatible with both the 99-13 truck front drive accessories and 10-15 Camaro LS3/L99 front drive accessories as both applications share the same spacing.
This underdrive balancer will require a shorter drive belt for proper belt tensioning since they feature a smaller pulley diameter.