My neighbor has an 05 F350 with the 6.0 and has had issues with the injectors and had to replace a few. Also had some small issue with a sensor that a few shops chased and costed him a few thousand. The 03's to 07's are apparently very easy to steal so they are sought after. Pricks also tried stealing it but I think my dog interrupted the theft buy of course the truck got damaged. My 09 was sitting right beside his and nada.