Is this going to be a mistake?

[hdff]

I am trying to install a ece super track bar and can not get the old u bolts out. I am working on jack stands so my space is limited. I have sprayed them 4 or 5 times with kloil and pb blaster and have had no luck with a 3# hammer and wedge. Is there any problem that I am not seeing if I take a cut off wheel and cut the U before the bend and take my impact and try to tighten the nut till it gets tight and hopefully turns the remaining straight part of the U. Any war stories about your experiences or opinions are welcome. Thanks