I've spent all afternoon trying to uninstall this faucet, and I'm nearly done except for this last part. This widespread faucet has been a pain in the neck to remove. The spout and left side handle I was able to take out, but the same method isn't working for the right.
The mounting "nut", if you can even call it that, will not budge. I've put on as much penetrating lubricant as I can, but to no avail. I don't even care about damaging the part itself because we're going to toss it in the end anyway. I'm not opposed to sawing anything off, but its so flush with the porcelain that I'm afraid of damaging it. Here's what it looks like up top. As you can see, trying to loosen it from the top hasn't been very productive either. The wrench is more likely to just chip off more metal rather than actually free anything. I have a Dremel available, but I'm not even sure where I should cut that won't cause too much damage. The sink is on a pedestal and it's tight with the wall so my room to maneuver is very small. Any advice at all would be appreciated, because I'm about to take a sledgehammer to my entire bathroom.