1968 Dart body ID numbers

I know the 1969 dart has body ID numbers stamped on the radiator crossmember and the rear trunk drip rail under the rubber. Are the 1968 dart body ID numbers in the same places?

I know the 1969 numbers will correlate with the VIN, and the 1968 numbers will correlate with the SO number, but I need to know the 1968 dart ID number locations.