Busted seat belt bolts!

[K10mashup350]

So I'm now working on the interior of my truck an the previous owner removed everything including seat belts but as they did it they busted 2 of the bolts in the floor (drivers side belt, and pass side buckle).... I'm wondering if there is anything I can do to get them out without having to get the drill n tap/die set out??... I've already tried putting visegrips on the bottom an tried to spin them out that way with no luck... Is there another spot that I could mount the belts without having issues?

Any suggestions would be helpful, thanks

[bake74]

     If they broke off from the top, most likely they would not come out the bottom (as you learned) without messing up the threads.  Why would you not want to get them out and use the same holes ?  It should not be that hard.

[K10mashup350]

Problem solved! Cut old nut/bolt off under cab an replaced with new ones