Hello everybody!! Just joined the group and i have a question. I have a 2004 4.7 that needs a new radiator. I am seeing that there is a standard cooling, heavy duty cooling and severe duty cooling type. How can i tell which one i need? i have tried to decode the VIN but i dont see anything about the radiator. Can anyone tell me how to tell the difference between the different types? Is there anything obvious? I feel like i'm missing something simple. Thanks in advance.