Pretty sure its the high pressure line fitting at the top, 17mm bolt if I remember, I assume its the coppers crush washer thats the problem.
Is this a part that I can just get at the parts store for my truck or will I need to know the size and order one that way ?
I will totally clean and make sure its not the hose when I can.

91 with 3.0l v6 automatic.

perhaps check that bolt torque- those copper washers are pretty forgiving, in my experience, and i've reused them frequently.

a good clean-up is always a good start- it may make it an easy fix, or at least show what's happening.

your local parts people probably have washers, and should be able to get a new hose "from the warehouse" ?

'course that means messing w/ the pump end of things, fluid dripping and running all over, another trip to the parts store for more powersteering fluid and that other stuff you forgot last time.

but, when you're done, you won't have to worry about that for a while.....