Folks, all the new parts are installed, to include new PS Gearbox, PS hoses, upper control arms, new Pittman Arm, ALL Ball Joints,etc............but I have one problem. Drivers side upper ball-joint rotates when I try and tighten the nut. New Nut gets about half-way up the threads and then the ball joint rotates with the nut, not allowing me to torque and install the cotter pin. Any suggestions or tricks? I'm stuck at this final step.