I know you are getting a lot of different opinions but , I would look for a good Ford (99-03) 7.3 diesel. I have four 7.3's (F-350 with 470,000 miles, F-350 4X4 with 270,000 miles, Excursion with 260,000 miles, and Excursion 4X4 with 178,000 miles) with the exception of the camshaft sensor which...