Power steering box question

[bigblock73]

How can one tell which port the high pressure hose hooks to from the power steering pump? I am assuming it is the one on the top of the pic below.

Also, I purchased both new hoses, one has the fitting on both ends (high pressure hose, supply I 'spose), the other for all intensive purposes is just a hose that is secured with hose clamps (low pressure hose, return). I assume there is a fitting I need for the low pressure hose, but I do not have one and don't remember if I pulled one off six years ago when I tore the truck apart. Can someone tell me what I need exactly so I can go about getting it?