I have a 2006 V8 Limited Toyota 4Runner with 103K. I've owned the vehicle since 2008 when I bought it with 23K and have put mostly highway miles on it. I have yet to replace the timing belt, but I know Toyota recommends replacing the timing belt at 90K. I tried to search the internet and different forums to see if the timing belt truly needed to be replaced or if I could take the car another few thousand miles without replacing it. I couldn't find much info via my internet search - Any advice?