IT IS ALREADY THREADED solution for the wcd going on crank. How hard would it be to make a nut with splines on the outside and screw it on the crank to make it have a big surface of splines where it would be harder to strip out. Adam said that the wcd bearing has splines all the way down the bearing. So it would almost double the contact surface. Are there any machinists out there that can make a nut that is as hard as the crank.