Mainly, the automatic gearbox employs a roller clutch for program upshifts/downshifts. It operates the same as a ratchet. It transmits the torque only in a single way by free-wheeling or overrunning in the other. The advantage of this kind of clutch is the fact it gets rid of the potential https://martinyxwtp.newbigblog.com/39964165/new-step-by-step-map-for-gearbox-auto