Transmission gears are also known as manual gearbox or standard transmission provides conversion from a rotating power source to another device using gears ratio in a motor vehicle machine. It is the base equipment in a car. The term gearbox includes gearbox, clutch, prop shaft , differential and final drive shafts. The transmission gears has the ability to switch between the multiple gears ratio as the speed varies.

Planetary Gears Sets, Hydraulic System, Torque Converter, Computer are the main transmission gears part that needs to work together. Planetary Gears shift the transmission gears, actually moving the gears in a linear manner. The ring gear brings power from the engine by connected to the input shaft. The planet gears are connected to the output shaft which carries power to the drive train and wheels. It is also connected to a clutch pack. The sun gear is connected to a drum, which is connected to the other half of the clutch pack.

Hydraulic System puts the transmission clutch pack at the right time. The main purpose of this system is to help in control transmission gears shifting, to lubricate the transmission parts, and to keep the transmission cool.

The torque converter in an automatic transmission gears. It allows the engine to continue running when the vehicle is stopped. Torque is a force that causes rotation.

Due to vast technology computer controls the transmission functions of car. It controls the speed, engine temperature, engine speed, etc.

There are basically two types of transmission gears called manual and automatic transmission gears. A manual transmission gears is simple, lighter and offer better fuel economy. They are mechanically simpler and lower repair cost. It allows fast shifting of gears. An automatic transmission gears is one in which gear automatically change as the vehicle moves, freeing the driver from having to shift gears manually.