T&D Machine Products has been manufacturing specialized components for racing since 1975. The firm manufactures shaft rocker arm systems. It serves engine builders and automobile and boat racers. The firm provides laboratory testing services for weight, mass-moment of inertia, deflection and cycle durability. Its products include shafts, stands, assemblies, valves, compressors, lash wrenches and checker kits. T&D Machine Products features products of various makes, including Ford, Chrysler, Chevrolet, Pontiac and Oldsmobile. T&D Machine Products is located in Carson City, Nev.