Primarily, the automatic gearbox employs a roller clutch for plan upshifts/downshifts. It operates identical to a ratchet. It transmits the torque only in a single way by cost-free-wheeling or overrunning in one other. The benefit of this sort of clutch is it removes the potential of simultaneously applying the clutch https://gearboxauto97428.dgbloggers.com/34228512/little-known-facts-about-gearbox-auto