Front upper suspension questions. Frame or bracket?

I have a 1996 2 door and last week the suspension started sagging. Checked the suspension components and all seemed to be in order. After getting it up on a lift, we found that there were crack and rust at what appears to be the upper suspension bracket to the frame. I have checked several diagrams online and cannot seem to determine what part is actually cracked and needs to be replaced or welded.

Should the part be welded or is a replacement easier?

We would so appreciate any input anyone has.

See pictures attached. (Front passenger side. Taken from the front of the truck looking up to where the upper control arm attaches to the frame.)

 

This does not look good at all. I looked on mine for comparison, but I'm having a hard time understanding what part this is.