How come boat shafts aren't connected by a universal joint like in a car? Seems like the automotive world figured this out a long time ago. Would make all this work trying to get perfect alignment much simpler. Even with good alignment motors are rocking, vibrating, pitching, shifting, etc. as the boat is pounding into waves and the hull is distorting from forces from the wind. Wouldn't a universal joint relieve the lateral forces on the cutlass and stuffing box? What am I missing?