Steering lines for PSC box

[simplysigns]

I bought a PSC steering box from ORD with hydro ass. I am not using the hydro for now. But I need to no what kind of power steering lines I need to use with this box. (The lines that run to and from the power steering pump.) They are not use the standard blazer lines. I have already tried them. The nuts tighten but the metal tube is still loss on the box. Like there are not enought threads. Everthing tightens on the steering pump. I need to to know what to tell the guy at the parts store to look up. Can anyone help?

 

[4X4HIGH]

What year is your rig? Prior to mid 1980 the lines were flare fitting style, mid 1980 and later GM changed to the O-ring fitting style lines. My guess is that you have the wrong steering box for your truck.