I bought my 04' SR5 V8 in June of 04' with 74 miles on it. Last week I hit 100K and am proud to say that I have not had one issue with any part of the drivetrain. I had the timing belt changed just to stay proactive. I checked the plugs and they looked brand new.

The only issues I have had are the sunroof (stopped working under warranty so they dealer replaced the whole assembly) and all of the lights on the HVAC controls have burn out, and a weld on the seat frame broke, but I am pretty rough on that seat.

Man I love this truck. I hope it lasts forever.