Today has been an epic fail car wise. I went to fix an exhaust leak on the back side of my Y pipe. I managed to get the new o-ring in but i spun on bolt in half and another one is now spinning freely. The one that split I can easily replace but my questions is about the bolt on the front end of the Y pipe on the drivers side. The nut got about halfway down the threads and started spinning in place. The bolt seems to be fixed in place. Is there any way to replace this bolt or am I going to need a whole new Y pipe.