[MENTION=340]Eagle[/MENTION] I know nothing about diesel trucks. But I do know from hearing guys talking about them here and there that the 6.0 was one of the worst engines of all time. I heard from mechanics saying they were happy when the 6.0 went out of warranty service. I have heard nothing by negatives about that motor. Please take this with a grain of salt because its all hear-say, but its alot of hear-say in my book. Maybe too much.