After I bought my truck, I realized it had two gas tanks (for baja I think). I've since removed the 2nd tank, and blocked off the two lines that ran to it. However, I've got this switch(?) on the passenger side by the fuel filter. I want to remove it and grind off the skid plate below it. However, I don't know if there is a stock part that is supposed to take it's place or what.

There are 6 lines total that connect to this widget. 2 are blocked, 2 are going to the existing tank, 2 are going to the engine.

Any suggestions on what is supposed to be there, if anything?

P.S. Let me know if anyone wants this thing once it's off. I don't think I have the wiring harness any longer.