Bad PS pump, steering box, both?

[tucsonjwt]

I don't know what the problem is, but I just thought that I would mention that the swap out cost of a rebuilt steering box is not very much. I had my steering box replaced about 5 years ago and the core value of the old steering box was almost as much as the cost of the rebuilt box. I think the net cost of the rebuilt steering box was only about $30. I got the rebuilt box from Autozone and the mechanic who installed it said it was a good quality unit (surprised me). Don't know if this is still true. I replaced the pump and box at about the same time, since the pump replacement did not entirely fix the leak out of the top of the box, just as reported here. I recently had some noise in the pump and noticed the fluid level was down a little, so I topped it off with some additive - noise gone, fluid level still correct. Like Click and Clack suggest, why not get some additive with the name "miracle" in the title?