<VV> VIN numbers

[Rick Fulkerson]

Except for 67-69, Corvairs were built in multiple plants. In those years, is it possible for 2 cars to have identical
VIN's (except for the plant code) or was their communication between plants to prevent it? From my experience with late models,
I don't see any obvious differences in the VIN's between Willow Run and Van Nuys (except for the plant code).
Just something keeping me awake at night.

Thanks
Rick