Sorry for the delay. I did install the OEM bushings, and have mixed feelings about the results. They definitely helped with the harshness that I complained about with the poly ones, but now I feel like I'm all over the road. Not really sure what to attribute this to. The install seemed pretty easy, just lubed them up with some soap (glass cleaner, 'cause it's what was handy....) and pressed them in by hand (had to pry the last little bit out with a screwdriver). Maybe they went in too easy... I thought I read somewhere that Toyota doesn't sell these as we aren't able to install them correctly? Maybe that's true. One thing that I did notice after installing them was that my steering wheel was way off center (I had just had it aligned a couple of hundred miles before this). I had to loosen all the bolts and crank the steering wheel all the way over and hold it while tightening the bolts, and it's still not perfect. This makes me suspicious of a correct install.

I will likely go back to poly bushings, but I've recently moved across country into an apartment with no garage, so I'll be living with it for a while....

Hope this helps, but it probably won't...