The aforementioned friction bands and clutches are managed using automatic transmission fluid (ATF), that is pressurized by a pump then directed to the right bands/clutches to acquire the expected gear ratio. Clutch Method Once you use either clutch, an annular piston forces The 2 sets of clutch discs into Call. https://gearboxauto64297.ltfblog.com/32702445/the-definitive-guide-to-gearbox-auto