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
  • Comes with Single 3/16″ Keyway
  • 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


Crankshaft Pin Kit -GM LS Truck & Gen 5 Camaro #968

Crankshaft Pin Kit for GM LS Trucks, TBSS and Gen 5 Camaro's.

Designed for use with Innovators West dampers. Will not work with OEM or other aftermarket dampers.

Double 3/16" Keyway Add On

Add an additional 3/16 Keyway to your Damper. Required the crankshaft to be machined for a second keyway 180* out from the original keyway. *Requires damper purchase. This is a labor option for new damper purchase only.

SKU: 861 Category: Tags: ,