That 99 aint even broke in yet. My 2000 F250 diesel has just over 300,000 and ii s going fine. It has been a hard puller most of it's life pulling construction equipment from the Salt Lake area out to Western Washington averaging 18,500 per load on every road condition God has made. Couple of clutches and one transmission and one overdrive til retried it to my everyday driver two years ago. And yes I did have to slip shift from Boise to Kirkland clutchless one weekend which was quite a trip.
