I had to have a wheel bearing replaced a couple of years ago on my 2005 V6 4runner - purchased from new. Good mechanic, and it took him hours of work. I would replace whole assembly next time (in under an hour). They come pre-pressed and you just bolt them on. Good luck doing this without a "press".

No trouble with the one he replaced. The other three are still maintenance-free and 15 years old.

It's usually the front ones that go. I keep a new "spare" assembly WB in my garage for the next one that
fails.

I've never replaced any of the Ujoints on the driveshaft and they still are hanging in there. At the first noise, I get them fixed as you don't want the DS flying off and breaking

BTW U-joints (3 of them) would have to be done by a good mechanic with a lift. They are on there like "solid". Mine are OEM. Can't beat that after 15 years. I've had failures of U-joints on a GMC Jimmy and it isn't pretty. Make sure they are lined up as straight as possible. Any wobble and they will fail.