The friction bands tend to be useful for manually picked gears (for instance very low variety or reverse) and operate over the planetary drum's circumference. Bands are usually not applied once the drive/overdrive assortment is selected, the torque getting transmitted with the sprag clutches as an alternative. Compound Planetary Gearset https://gearbox-auto42963.boyblogguide.com/32826470/gearbox-auto-things-to-know-before-you-buy