can somebody tell me what the difference in the injectors are between the 03-04, and the 04.5-07 trucks?
and what the numbers are for those years? part numbers? i have a set of cores, in which i will not be using, and i thought they were for a 03 truck, but i am not sure now.

 

The 03-04 have 018 stamped on the black plastic by the brass screws and the 04.5-07 5.9L have 032 stamped. If you look at the top of the injector with the screws at 6+12 o-clock then the # you are looking for will be at 2 o-clock or next to the top screw.

I hope this helps.