RE: 2008 f-250 door lock HELP!
Like Hayapower said, should be in the zippered owners manual case on a card. If it is not, you should go back to the dealer and request the number or contact ford. If the code is lost, you should be able to have it reprogrammed at the dealer. Once you get the code, if you would rather use another code, you can program it in but the original code always works.