[dennislbrooks]

I would say you have a restriction of some sort. If you remove it and all is well, you probably cannot reuse it but drive it until you feel like replacing the whole box as I do not know where to get that little bugger.

Make sure you have no other probable restrictions. You have most likely eliminated the pump as the culprit and also maybe the lines.

Did you have any problem or a different feel when you installed the pressure hose fitting into the steering gear port?