I have an 1985 diesel cub cadet (red). The ball joint has broken. It looks so easy to fix, but I'm a woman with very little experience. I was told to remove the cotter pin and loosen the lock nut. I cannot get the nut to loosen. Is this the only nut that needs to be loosen. Also, to loosen is it counter clockwise. I know some machines you turn the opposite. Help!