Mostly, the automatic gearbox uses a roller clutch for program upshifts/downshifts. It operates similar to a ratchet. It transmits the torque only in one path by no cost-wheeling or overrunning in the opposite. The advantage of this sort of clutch is usually that it removes the possibility of concurrently applying https://gearboxauto07418.get-blogging.com/34315921/how-much-you-need-to-expect-you-ll-pay-for-a-good-gearbox-auto