To obtain the transmission into overdrive, plenty of issues ought to be linked and disconnected by clutches and bands. The Earth provider gets linked to the torque converter housing by a clutch. The tiny Sunlight will get disconnected within the turbine by a clutch to ensure that it can freewheel. https://gearbox-auto87520.dailyhitblog.com/39214250/5-simple-statements-about-gearbox-auto-explained