Common locations to look for the identification number on a 1966 Ford van include:
* Dashboard: Often on the driver's side, usually visible through the windshield.
* Doorjamb: Check the driver's side doorjamb.
* Firewall: The area between the engine compartment and passenger compartment.
* Under the hood: On various components, but not always easily visible.
You'll likely find it stamped into the metal. It might be somewhat faded or difficult to read due to age. Be prepared to clean the area thoroughly to have a better chance of seeing it clearly.