I just bought a 04 F-350 6.0 crewcab and love it. All that came up in the oasis report was a trany replacement at 15000 Km. In my checking I found that the 03s had a lot more problems then the rest of the 6.0s. I would stay away from the 03s and I would also stay away from the programers as quite a few people have experienced head gasket leaks after installing programers. It has been streching the head bolts ( it has been happening to stock trucks sometimes too). I think these trucks have plenty of power when stock for most applications. just my 2 cents worth.