MY 1956 CHEVY TRUCK HAS A VIN # ON THE LEFT HAND SIDE OF THE DOOR HOWEVER THE # IS NOTHING SIMILAR TO WHAT I SEE OTHER TRUCKS HAVE AS A VIN IT IS A COMPLETE NUMBER STARTING WITH 4255 WITH NO LETTERS IN THE id. This truck was originally purchase by my grandfather through his fleet sales with Georgia Pacific Lumber can you tell me how I can identify this as a 1956 Chevy Truck with DMV?