Back on February 18th I finally got underneath the Concord to fix the exhaust. The connection between the manifold and the pipe flange has been leaking since I got the car. After some investigation, I found the previous owner had tried to fix the connection before and put the wrong size nut on one stud and just ran in a bolt on the other side. I bought a stud kit from the parts store (GM stud kit from the "Help" section is the same for an AMC) just in case I had to replace any studs. I had to replace one stud, put the right size nut on the existing stud, replaced the donut gasket, and tightened everything up. I can know hear my radio inside the car. That was the only thing I had left to fix for the car to be inspectable even though I have been driving it with an expired sticker. I drove the Concord to work but before I got there, I stopped by the inspection station and got a new state inspection sticker slapped on the windshield. The Concord is now 100% LEGAL!