Principal Shaft is also referred to as output shafts. It revolves at another pace and likewise gives necessary torque towards the autos. This incredible piece of gearing has appeared on HowStuffWorks before. You could figure out it from the electrical screwdriver write-up. An automatic transmission has two comprehensive planetary gearsets https://gearbox-auto42963.loginblogin.com/41100594/a-secret-weapon-for-gearbox-auto