and the box is big too!
Is there any way to skew the bar to one side slightly? Or is it keyed in place?
Or perhaps there just isn't the room to move it, but if you could just move it over 3/8" or so it looks like it might clear.
If the bar is not keyed in any way, it would be free to move side to side during use. Which probably is not good with such tight quarters. So guessing there is something to keep it from moving, but if you can manipulate that to move it over, that might help.
Not that you have not probably thought of that already, but figured I'd bring it up.
Paul