Hey guys, I was hoping to get some help in addressing an exhaust leak on my '73 Deville. The car my first project car (I'm 18 and trying to learn wrenching), and I'm already having difficulty. The previous owner said the leak was caused by an exhaust flange gasket. However, I'm wondering if it's caused by a missing bolt. I removed a nut from the bottom screw (in the area shown in the attached pictures). However, I noticed there's no nut or bolt in the top hole. Will a nut and bolt in the top hole be enough to stop the exhaust leak?