Schley Tools - GM HARMONIC DAMPER HOLDING TOOL

The Schley Tools 62800 is designed for secure and efficient removal and installation of harmonic balancers on GM Gen III and IV engines. It locks the damper firmly in place to prevent rotation, allowing technicians to apply up to 240 lb-ft of torque without risk of damage—essential when loosening or tightening crank bolts on LS-based engines. Built tough for repeated use, it’s ideal for both professional and DIY engine work.