This harmonic balancer installation tool is designed for use with Chevy LS crankshafts. Made from high quality steel material. This tool makes installing the harmonic balancer simple and easy. Just thread the proper end into the crankshaft and rotate the nut pressing the bearing against the harmonic balancer. Sold individually. Backed by a limited 30 day factory warranty.Proform Harmonic Balancer Puller 66519Specifications: Feature/Benefit Made in USA Bearing Tool Type LS Tools Applications Chevy LS Crankshafts Category Balancer Installer Color Black Oxide Finish Black Oxide Material Steel Nut Style Hex Nut Part Type Harmonic Balancer Install Tool Make GM Description_ABR Damper Tool Description_SHO Balancer Installer Description_INV Harmonic Balancer Installation Tool Description_DEF Harmonic Balancer Puller Description_ASC Harmonic Balancer Installation Tool Description_ASC For Chevy LS Crankshafts Description_LAB Harmonic Balancer Installation Tool Description_LAB For Chevy LS Crankshafts Description_DES Harmonic Balancer Installation Tool Description_DES For Chevy LS Crankshafts Description_EXT Harmonic Balancer Installation Tool Description_EXT Fits Chevy LS Cranks Description_EXT Made from Quality Steel Description_EXT Makes Installing The Balancer Simple Description_EXT Just Thread End Into Crankshaft and Rotate the Nut Pressing Bearing Against Balancer Description_EXT Sold Each Description_MKT This harmonic balancer installation tool is designed for use with Chevy LS crankshafts. Made from high quality steel material. This tool makes installing the harmonic balancer simple and easy. Just thread the proper end into the crankshaft and rotate the nut pressing the bearing against the harmonic balancer. Sold individually. Backed by a limited 30 day factory warranty.