Front skid plate bold stripped from Cross Member?

What's up Tacoma world?

I have a delema. I went to change my front diff and transfer case today. As I went to remove the bolts from the cross member attaching my RCI front skid plate, the bolts wouldn't come loose. I reached up inside (barley) and sure enough the nuts that are supposed to be welded, are no longer welded and moving freely. SO, I've tried putting a 13mm wrench, socket, joint with a socket etc... and nothing can seem to get a grip of the nut on the inside of the cross member.

Has anyone experienced this? It certainly was not like this the last time I went to the dealership for my scheduled maintenance. Seems off to me.

At any rate, see the photos. I cannot for the life of me find another easier way into the area where I can get ahold of the nut. Theres about 3 access point but all are at awkward angles to the point where I can't seem to fit the right tool in there. Maybe there's a flexible wrench I don't know about? Who know, grateful for any suggestion ya'll may have.

 

You made two identical threads. Just fyi