AS COMPONENT PARTS ARE MADE BY VENDORS,THEY ARE DATE STAMPED (CODED). THEY LATER ARIVE AT THE ASSEMBLY PLANT FOR ASSEMBLY. I HAVE NOTICED A PATTERN . SOME COMPONENTS ,LIKE (DIFFERENTIALS) ARE DATED 1 MONTH PRYER TO ASSEMBLY . ( HOODS ),ONLY 1 WEEK PRYER TO ASSEMBLY. COULD THESE COMPONENT DATES ,HELP DETERMINE WHEN THE CAR WAS ASSEMBLED ,IF THEY ARE ORIGINAL TO THE CAR?