It is all about Chevrolet. As an automobile icon, Chevrolet’s vehicles are all inspired by its humble beginnings. They have started in engine building and purchasing aftermarket bodies from other manufacturers. But they became popular when it first introduced the overhead valve (OHV) six-cylinder engine as substitute to the conventional OHV four-cylinder engine for their trucks. From then on, other developments are also took place in the overall structure of Chevy trucks, including its transmission mechanism.