The friction bands are frequently employed for manually picked gears (such as lower vary or reverse) and work around the planetary drum's circumference. Bands usually are not applied when the push/overdrive variety is chosen, the torque getting transmitted with the sprag clutches as an alternative. The change valve is pressurized https://gearbox-auto87306.answerblogs.com/34005930/the-basic-principles-of-gearbox-auto