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Old 02-08-2014, 10:13 PM
Mxfrank Mxfrank is offline
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Join Date: Dec 2006
Posts: 3,451
First off, don't be too disappointed if you have to weld in a new bracket, it happens.

What I would do is to try to drill out the bolt. Use a small drill and go slow, keep it centered as best you can. Gradually enlarge the hole with larger drills. Once you get close to the major diameter, the old bolt should collapse and come out with less persuasion. If you have enough material, run a tap through to chase the old threads. There's less stress on these brackets than you would think, as long as you have a few good threads you'll be fine. You can always use a longer bolt and a second nut if there aren't enough surviving threads.

If you can't rescue the old nut, which is too often what happens with me, your idea of cutting a slightly larger hole and running a nut and bolt through would be fine.
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