Carrier bearing nut

I recently changed out my carrier bearing and doing so, I stripped the nut that one of the bolts to hold the carrier bearing to the frame. Sad part is that the nut is welded onto the metal piece that is also welded onto the frame. I’m debating on going one size up in the bolt threads and seeing if that holds. Or maybe trying to fit a nut up top where the bolt sticks through. Lmk if you guys have any better ideas

 

If it's completely blown through then I'd get a longer bolt with a locknut the same diameter.