To get the transmission into overdrive, lots of factors must be related and disconnected by clutches and bands. The Earth copyright gets connected to the torque converter housing by a clutch. The small Sunlight receives disconnected from your turbine by a clutch to make sure that it could possibly freewheel. https://gearboxauto43196.pointblog.net/gearbox-auto-things-to-know-before-you-buy-77381831