Power Steering Questions.

Working on an engine swap from a detroit 8v92 to a 3406 in a w900a, the old pump off of the detroit has one large supply line and two pressure lines one that goes to the hydraulic cylinder under the battery box and then the other runs back into the resivor, I assume this pump has a bypass in it that sends fluid back to the tank when you aren't turning.

The pump on the cat is the same pump, it just has the bottom port plugged and only one pressure line, will this pump still work properly if I install the fitting off of the detroit pump into the bottom port.

 

As I said there is only one pressure line that connects to the cylinder and the other goes right back into the resivor, there is a return off of the cylinder that also returns into the resivor. There are no lines going to the steering box. I gonna go out on a limb and say that this is an assist cylinder and not true power steering.