Yes, the actual arm. If you take a pry bar you can get between the arm and the frame rain and pry down on the arm where the joint is for the drag link. The arm flexes pretty severe.When I first did it I would have sworn the sector shaft nut was loose. I honestly thought I found the problem.....then I realized it was tight and the arm was just flexing that much.The actual arm? Wow! I know you have the steel steering box, but the pitman arm isn't part of that TSB.