These levers are reproductions of the OEM levers .  They are laser cut from cold rolled steel so all the edges and hole edges are case hardened by default lending to longer life. These shift tabs come with grade 95A urethane bushings already installed, one step harder than the OEM or replacement bushings available today. They are billet machined from solid urethane rod by the seller/craftsman.  Each bushing is coated on the ID with a thermoplastic lubricant for easier shift rod installation into the bushing. Sold as a set.