The friction bands are sometimes employed for manually chosen gears (such as very low array or reverse) and run around the planetary drum's circumference. Bands will not be used if the travel/overdrive assortment is selected, the torque getting transmitted because of the sprag clutches rather. 1st Gear In 1st gear, https://gearboxauto08641.thezenweb.com/about-gearbox-auto-71829000