Dodge Dart Pitman Arm

Update: My stud as you call it, the oposite end that the castle nut is on, not only spins, but moves around like a joystick? Man what is going on here, is this normal? Is it normal to have to pinch them together with channel locks to tighten the nut to 80lbs? Seems very odd.

Thanks for any input again!

Without being there it is a guess on my part, the hole in the drag link may be worn out as in to large.