I agree with buy128. That's the trans. I had a 08 and now I have a 2012 9.0 the 08 needed a trans after 187k miles because it was a hospital transportation car and was beat to crap. Yes Toyota/Scions can do 200-300k miles if you baby them- but I've never heard of our transmissions lasting that long if you're an aggressive driver like me. You can get a trans for $400 low miles at any JDM parts place. My .02 cents.It has 194k miles....engine was rebuilt 70k ago, not that that affects transmission.
Car drives and runs awesome. Just drove it across country from Florida to NM. No other transmission weirdness beyond the having to be totally warmed up to Drive.