The friction bands are sometimes used for manually picked gears (for example very low array or reverse) and function within the planetary drum's circumference. Bands aren't utilized once the generate/overdrive vary is selected, the torque remaining transmitted via the sprag clutches in its place. The earliest variety of automatic gearbox https://collintusqo.blogofchange.com/34373668/getting-my-gearbox-auto-to-work