Transmission is used to change from the engine speed and torque of the organization, it can be fixed or step change the output shaft and input shaft transmission ratio, also known as the gearbox. Transmission is composed of variable speed drive mechanism and operating mechanism, some cars and power output mechanism. Most of transmission mechanism with ordinary gear drive, also some use planetary gear transmission. Ordinary gear drive with slip and synchronizer gear shift gear general, etc. And transmission rear cover is installed transmission cover shell.
