I have a Tacoma 4 door v6 (4 liter) like you mentioned.

If you get an e-locker (off road version) they can have problems with the back end...
Other than that I had to replace my front wheel bearings.

I have 186,000 on it now, it’s a 2007 and keeps on ticking with no problems that stop it dead (I drove with bad wheel bearings /differential until I realized they were bad).
Gas mileage is 13-18 normally, if you stay below 63 you can get as much as 22 mpg.

Toyota unlike ford will fix what’s bad with the truck... they replaced my FRAME... (yeah the entire frame) because they had a bad bunch of frames and it rusted...

Frankly I use my truck ALOT so it’s been rode hard, and keeps on ticking.

Note - Costco has the best method of buying a toyota, you’ll get static pricing that’s close to dealer... it’s the only way to fly.