LS Truck & Trailblazer SS, 6 Rib 10% Underdrive Harmonic Damper #861
SFI 18.1 Harmonic Balancer for GM 2009-2015 LSX Gen 5 Camaro, GM 1999-2013 Trucks & 06-08 Trailblazer SS – w/ Crank Bolt. Features 6 Rib drive & 10% Underdrive Pulley.
Underdrive dampers are for use on Naturally Aspirated engines making 700hp or less. For engines making over 700hp, please use a standard diameter damper for greater dampening capability.
This damper comes standard with 3/16″ Keyway for use with aftermarket crankshafts.
- Diameter: 6.5″
- Weight: 7.8 lbs
- Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.
2 in stock