Tried using a special Craftsman tool to remove the bolt, that didn't work, tried drilling the bolt entirely out, that didn't work. I ended up cutting the exposed bolt off and prying the caged nut "holder" up on one side and removing the cage nut with trapped bolt. The bolt had completely fused with the caged nut. Tried heat/cold cycles, penetrating oil, even welding a nut onto the bolt with the cage in a vise. I ended up drilling out the bolt center. Currently I'm just using a Grade 8 bolt, washer, locker washers with a nut. It's not pretty but it will work until I have the body work done. I will then have a new caged nut welded in.
