The friction bands are often employed for manually selected gears (such as small assortment or reverse) and function to the planetary drum's circumference. Bands are not utilized once the travel/overdrive selection is chosen, the torque currently being transmitted with the sprag clutches alternatively. The shift valve is pressurized with fluid https://gearbox-auto76318.blogpayz.com/33864158/the-basic-principles-of-gearbox-auto