In the case of Ram 1500 vehicles, the Rocker Arm is an essential component of the engine's valvetrain as it plays the part of transforming motion from the pushrod to the intake and exhaust valves. Traditionally made from stamped steel or aluminum materials, Rocker Arm is designed to translate the movement of the pushrod in the vertical manner into the correct downward movement for the purpose of lifting the valves. In high-RPM applications, aluminum alloys by reason of its light weight are used in the construction of engine, for diesel engines cast iron or forged carbon steel is used because its strength is higher. Several types of Rocker Arms have been used on Ram 1500 including the traditional and the roller types of Rocker Arms. Roller rockers use needle bearings thus, allowing an advantage especially in a performance point of view as they can not wear out easily. The rocker ratio which varies from 1.5:1 to 1.8:1 in modern engines alters the lift force of the camshaft to advance the general performance of the engines. Improved fulcrum bearings are also incorporated in high RPM engines to address stress while increasing the lifespan of Rocker Arm.
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