with that said, depending on your driving habits and maintenance history of the tranny, you would have to worry about the tranny before the motor in most cases. If this was also well taken care of then you may not have anything to worry about. Obviously the supercharged motor is harder on the tranny than the NA 3800 due to the extra HP/torque.........but it is way more dependant on maintenance if you arent beating the crap out of it.