The gearbox (also called a transmission) is a big and essential part of any motor vehicle having a combustion engine. The automobile gearbox or transmission are labeled as: handbook transmission, automatic transmission. A compound planetary gearset acts like two planetary gearsets blended. Understand compound planetary gearsets and an automatic transmissions https://gearbox-auto19528.fare-blog.com/34295412/gearbox-auto-for-dummies