Only issue I have had was the transfer case, and a bearing on the transmission to transfer case. Forget which exact bearing it was...Nice Jonny!
We have the same year model Sequoia. I'm looking forward for another 100,000 miles of trouble-free driving.
The one major repair that I was mostly to blame for and regret was a shot transmission at around 75,000 miles. I should have had at least 2 trans. fluid changes in that interval but I hadn't.
Now I religiously do a trans. fluid change every 30,000 miles.