Radiator Support Removal Advice

On my 72, I was doing some work on my radiator so I have it, the fan shroud & fan off. The radiator support looks pretty crappy so I decided to take it off so I could blast & refinish. To get it off, do you need to first remove a fender, headlight supports, grill supports or anything major? I have all fasteners off that I can see that are attached to the rad. support but it does not physically move. It's really stumping me, I have crawled all over it and don't see anything else screwed in. Is there something hidden that may not be redially apparent that has to come off first? Thanks for any input...ready to start drinking

Yep, got the 2 frame mounting bolts - they were tough, pretty rusty plus old undercoating. Had to soak in PB blaster a good while. The bushings are toast so will be replacing those. Makes me wonder if all the factory undercoat is acting like an adhesive / welding...I was hitting the support all around with a rubber mallet to see if it would dislodge. Walked away and doing other things. Revisit later with clear mind.

Thank you for the replies, sorry for my delay. The only fasteners I have not removed are the 2 frame bolts on the underside of the rad. support. I removed the 2 top ones but have been unsuccessful getting the ones on the bottom to come off without the whole threaded stud and bushings / spacers turning with it. I put the nut back on the top frame connection and placed a deep socket with the handle wedged, but the whole stud turns when I try to remove the one on the bottom. I'm attaching a couple of pictures, hopefully the photos are clear, been having phone issues.

here's what i used with part #'s (change the last letter to a G if you want black) and pics and a diagram...

http://forum.grantorinosport.org/info-core-radiator-support-bushing_topic6781_page2.html