Hi guys this is my first post on this website, I have a 1980 firebird and the rear frames are severely compromised. I am going to build this to stabilize the frame while I work on it http://imgur.com/a/ivHsx but I have no idea how to stabilize the rear end so I can begin cutting out the rear subframe and weld in the replacement I have. Any help would be greatly appreciated. I'm a bit over my head but I am doing this as a high school project and am determined to make her drive again. Thank you all for your time. The pinch welds also have rust so I need to reinforce those eventually.