Originally Posted by NunyaBidness
Take it to your local muffler shop and see if they can weld the studs for you again. That would seal it better and if you used a tank sealer on the inside it should be fine after that. Just make sure you don't try to over torque the nuts when you install it the next time. If you over torque the nuts they will make the studs leak at the tank again.
Who makes a cheap sealer that is guaranteed not to flake off in time and cause other problems? I'm all for sealing, but the good sealers I've read about are really expensive.