Its going to depend on where the problem is and if its with the slide, the barrel or both. If there's something wrong with the gun besides being loose, that bushing isn't going to help.
If you take the slide off and lay it upside down with the barrel in it, does the barrel look like its centered correctly in the slide? Likewise, if you put the slide back on without the barrel, does it fit on there nicely, or does it bind or sit incorrectly? Both sides of the receiver should look symmetrical in the area where the slide goes. And both sides of the slide should also be symmetrical where the barrel sits and travels.
I'm kind of puzzled why Taurus didn't get this right when you sent it to them. From the pics you've posted earlier, it should be obvious that there is a problem.