Ok, that part looks like the same as the upper one in my pic. Although if you try to install it just like it is in your pic it does not fit into the tapered hole because the larger part of the taper is on top.
The way the arm is in my pic is the way it was bolted into the car. Castle nut on the bottom of the bar to the tie rods. Does anyone have a pic of this section of there car. Im starting to wonder if mine even has the correct tie rods in it.