Features： Material: Steel Finish: Black Installer Style: Threaded Thread: 7/16"-20, 7/8"-14, 1/2"-20 Made from High-Quality Steel Makes Installing The Balancer Simple Just Thread Proper End Into Crankshaft and Rotate the Nut Pressing Bearing Against Balancer 1/2"-20 & 7/16"-20 Threaded Ends Not To Be Used For Removal - Installs Only Fitment： For Small/Big Block Chevy Cranks Package Includes： 1*Harmonic Balancer Installation Tool .
