Timbrens stuck on LCA

So I'm trying to take my front timbrens off my LCA's, but the welded nut broke loose. Now it's just spinning around in there. Any suggestions? I'd like to not destroy either the timbrens or the LCA's. It happened to BOTH. I think the bolt that timbren provided rusted in there.

The LCA's are off the truck right now, so I can work on it easily.

 

Interesting; usually the bumpstops fall off.

Pics?

 

Drill through, reciprocating saw, pry bar. Possibly all the above.

 

The real question is just what methods have you tried?

So many options .

Pictures would help.

 

I haven't tried anything yet. There is no gap, so I don't want to sawzall it and mess up the timbrens. I think what I'll do is drill out the bolt head. It's an allen head, so it will make it easy to center the drill bit. Then I'll drill out the rest of the bolt that's stuck then use a rivnut in its place.

The side with the stock bumpstops are fine. It's just the timbren side.