Muffler-Thread Replacement

If you’ve stripped the threads out of a muffler, here’s an effective remedy. Take a blind nut with threads matching those on the muffler bolts. With a drill, enlarge the hole in the muffler flange so it’s the same diameter as the outside diameter of the threaded part of the blind nut. Grind down the diameter of the nut flange, as shown, and insert it into the muffler flange from the rear. A smear of...