Hello from Houston TX.
I'm new to the site, I have a 2003 F-250 with the 7.3 liter diesel I bought new, I special ordered in Aug. 2002, my dealer told me I had one of the last runs of the 7.3. The sticker on the motor says 2002. It has the "ambulance" package (dual alternators), 4x4, 6 spd manual trans., manual transfer case (no switch on dash) along with other options I wanted. Since the big purchase I've added K&N drop in air filter, mag-tech rear diff. cover and 4" exhaust from turbo to tip. It's been a good truck so far.