So far we have 7- 1st generation frontier owners who have run up over 778,000 miles between them going back as far as 1995. Average mileage then is 129, 667 miles between the 7 vehicles reported and NONE reported any timing chain issues. I would like to continue with the poll if we can get more 1st generation owners to vote in this poll. It would make the data more valid. 7 just isn't enough for a statistical trend. Thanks for voting if you have a 1st generation (pre-2005) Frontier.