Wheel bearings maybe?

Go with a quality whole assembly like those sold by a TW member. Going cheaper will likely result in a repeat install from premature WB failure.
https://www.tacomaworld.com/threads...ce-4x4-prerunner.537080/page-50#post-22608778

 

The 2wd base does not use the assembly. It's the older style press in/out sealed bearing. You have to take the knuckle out, press the hub out of the bearing, press the bearing out of the knuckle, then reverse (along with 2 seals a big nut that goes on the back of the hub and secures the hub to the bearing, and a spacer). Pic below is from the 2013 FSM, and that's later than his 2009, so I would surmise his 2009 is the same.

 

Appreciate the correction regarding 5luggers.

 

I didn't learn about the difference until AFTER I got my newish-to-me 5 lug...
I bought it knowing there was a problem with ONE of the bearings, and at the time I was thinking, "that's OK, bearings on these are an easy swap."