The gearbox (also referred to as a transmission) is a big and essential ingredient of any motor vehicle having a combustion motor. Automatic gearboxes appeared commercially inside the 1940s, according to the Global Journal of Car Layout, and now they tend to be a lot more common than guide transmissions. https://automobile-gearbox75206.blogpayz.com/34221605/the-ultimate-guide-to-automobile-gearbox