New and High QualityDirect ReplacementTYPE:Harmonic Balancer Installation ToolManufacturer's number:66515Installer Style:ThreadedThread:7/16inch -20, 7/8inch -14, 1/2inch -20Made from High-Quality SteelMakes Installing The Balancer Simple, Just Thread Proper End Into Crankshaft and Rotate the Nut Pressing Bearing Against Balancer 1/2inch-20 & 7/16inch-20 Threaded EndsNot To Be Used For Removal - Installs OnlyFitment:For Small/Big Block for CranksColour:BlackMaterial:MetalPackage Contents:1 * Harmonic Balancer Installation ToolOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.