I looked over the pitman arm and the drag link today and the news is not good.  The ball on the pitman arm is of the cast on type and is not replaceable.  As you can see, it has some flat spots and it sure isn't the good old perfect sphere it used to be.         I have heard a new ball can be welded on by turning the old, worn ball down to a shaft on a lathe and then inserting a bored ball onto the shaft and welding it on.  Some have also suggested that