1972 Dart steering box problem

Arm is moving not the whole box, my family has a few there mopars with original boxes and I am aware they feel more over assisted compared to new ones, but the wheel has a lot of play in it. I will have to check into it more and possibly try Dave's method, I can't have the car down for an extended period of time right now and if I am removing the box I will just send it to get a stage 2 rebuild.