Im looking at a 89 4runner. i really like this truck but im concerned about a few things. The automatic transmission has 177,000 miles on it and im wondering reliable toyota auto transmissions are. The 22r engine has approx. 40,000 after it was rebuilt. It idles rough at stoplights but wont die. the seller said something about advancing the timing after the rebuild so it would idle smoother. im just wondering if this thing is worth my time and money