A gearbox is what the group of gears found in the transmission is called. Dodge gearboxes have both manual and automatic transmissions. All vehicles have one of three types of transmissions inside of them. There is the automatic, the manual transmission, and the semi-automatic transmission which are a combination of both manual and automatic depending on the gear you are in. Each part of the gearbox, or transmission, is designed to a specific function. If there is a problem with one gear, then there is probably a problem with the entire transmission. In every vehicle, there is something to control speed and the gears inside the car for speeding up and slowing down. It is the transmissions that allow for the speed changes in the car. You can check your dodge gearbox Louisiana if you are having any issues.