The word “transmission” is useful for a device that is found concerning the clutch as well as the propeller shaft. It could be a gearbox, a torque converter, overdrive, fluid travel, or hydraulic drive. Gears in gearboxes might be considered one of various forms, from bevel and helical gears https://gearbox13568.thezenweb.com/the-gearbox-diaries-71834832