Picked up a 02 EX, 7.3L PSD in 2014. No real issues, but I found a low mileage unit with good service records. I've had to fix wiring on the IPR connector and replace an alternator. Glow plugs done a month before I got it. If it's got the 4R100 service it regularly. Check out powerstrokehelp.com for some great tips on buying and test driving a used PS.