The friction bands are often useful for manually selected gears (like reduced variety or reverse) and run about the planetary drum's circumference. Bands are certainly not utilized when the drive/overdrive range is chosen, the torque remaining transmitted via the sprag clutches as a substitute. Compound Planetary Gearset This automatic transmission https://claytonjrwzd.madmouseblog.com/14274698/not-known-facts-about-gearbox-auto