LS Harmonic Balancer Installation Tool Crank Pulley Install Tool 551141 Compatible with GM 1997-UP V8 LS1 LS2 LS3 LS4 LSX LSA LS6 LQ4 LQ9 with Thrust Bearing & Wrench Flats 【HIGH PERFORMANCE】—The harmonic balancer installation tool features a crank strength of 12.9 and is constructed from premium 35CrMo heavy-duty steel.
