I think its time toyota brought their d4d engines in. I was stationed on mainland Japan for a spell and their turbo diesels are nothing short of awesome. If for some reason my 2.7 decided to completely dump on me tomorrow I would consider going to dieseltoys.com and getting one of their packages installed. They arent cheap but doubling city gas mileage with a real 4wd vehicle would save tons of money over the long run.
stamped and snail mailed