The metal tube at the bottom of the resevoir is leaking. Is it possible to replace this, or is it an integral part of the housing? I'll get a photo when it's light again.

 

Did my homework and it's the high pressure line for power steering pump. Since it is leaking at the reservoir fitting (feels loose but nut is tight) I can only hope that it is the tube fitting and not the reservoir housing.

 

replaced the 'O' ring, seems to have stopped the leak. Will know for sure after a run to town and back.

 

OK, the 'O' ring stopped the leak. Now I have a Question; if I use break fluid instead of pwr steering fluid will this cause any issue? The steering seems ok at low speed, however any thing above 40mph and the truck seems to "follow" the last turn of the steering wheel. I have to constantly correct the trucks heading. (If I let go of steering it doesn't straighten out).