Front Body Mount Question

[PunkyGoose]

This might be a stupid question but …. how the heck do you get the front body mount out!

I am replacing the front floor and front floor support and I can not get the body mount bolt out. A previous owner had obviously put an impact wrench on the nut and had pulled the bolt head through the floor and the support plate under it. It was (and still is) stuck in the “tube” inside of the front floor support. I have already removed the floor and the support plate. What am I missing? Is there something else holding it? Any help/ideas would be appreciated.

Also, if anyone has a picture of how the support plate should look, it would help as well.

Thanks in advance.