Bronco Vin Information.
We will deal with the Early Bronco VIN numbers first.
The early Ford Bronco (1966 -1977) used the old 11 digit system. The Bronco did not have the year as a digit in the VIN number. You would have to look at the build no. and from there you could find out the year the rig was built.
Ford, GM and Chrysler each used a different system. You can understand why the Feds later made every car manufacture go to the 17 digit system.
VIN location.
Location #1 - Your glove box door. It will be stamped (along with other info) on a metal tag that's riveted to the inside face of your glove box door. Since it's very easy to remove the door, this is often lost or even swapped with another truck. A smart inspector will look for the more permanent locations.
Location #2 - On later models the VIN is on a laminated paper tag adhered to the driver's side door post. (not the door itself, but the jamb)
Location #3 - Stamped into the top of the frame, on the passenger's side, right below the firewall. You can see it from the engine bay, but it can be hard. You'll probably need to wire brush off years of grime and/or rust to see it. Rubbing some chalk on the area helps too.
Location #4 - On early years (66-67) the VIN is on the driver's side kick panel.
VIN Number Example: U15GL732000
Series Engine Plant Build Month
U15 G L 732000
Assembly Plant
L Michigan Truck