1994 mustang welded torque box question

Can someone post a pic of the torque box in question for me or explain exactly where this is because I see these kits available to beef up this area and Im not sure where it is. I already have a 12pt cage , front and mid plate , do I need the kit? any help please. PS , I am still in Iraq total of three years ten months and trying to get all the parts I can before I come home.

are you running stock suspsion? i see in your sign s&w frame and tube if you are running that you dont need the t box kits.