would there be different piston styles for a 2004.5 model? I seen a picture of a guy selling a used one who swore it was for a 2004.5 and it is different than mine that is currently tore apart. Im looking for a good used one but want to make sure i get the right one

 

The 04' trucks had a different design and different injector tips too.

 

I would go for the 04 piston if it would work. It is a better design according to a lot of pullers and racers. As a matter of fact, someone correct me if I am wrong, but I think the new 6.7 Liter changed the piston design back to more like pre-04.5. (Pistons less likely to melt from what I understand) I would definitely do some research.