Unlike stud-mounted rockers , shaft rockers are mounted on a rigid steel shaft that resist deflection and ending. The shaft is anchored to a machined steel stand, becoming an integral part of the cylinder head structure. Shaft rockers resist side loads and maintain optimum valvetrain geometry. T&D Competition Rocker Arms are the product of years of testing and refinement. They are designed with Computer Aided Design and CNC manufactured to ensure precision for every application. Many rocker ratios available.
