Join Date: Sep 2000
Location: Washington, Michigan USA
Car-division-stamped sheet metal (hoods, fenders, etc. - anything forward of the firewall) didn't have any part numbers, and very few had any date codes. On the other hand, Fisher Body-stamped sheet metal (everything from the firewall back) had "run numbers" stamped in inconspicuous areas or on secondary surfaces - these were two numbers (like "34"), which meant the 34th week of the calendar year. Generally run numbers were only stamped on major panels, not on smaller pieces and reinforcements.
'69 Z28 Fathom Green