Thanks for the reply back. I just went ahead and ordered the PSB bushings. They look like they will end up being a better design with the inner metal sleeve not bonded to the rubber. The ease of installation seems like it alone is worth the higher cost of these too.

I did see that suggested approach of sawing the old ones out. I've seen a few places say to use a torch on the rubber and burn that out first, then use a saw on the remaining metal sleeve.