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Ditto on the Deuces! I came late to this party, interesting read.
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I don't know much about 68 Nova's.
The 69+ body numbers are confirmation #'s. The guy entering the data would enter the cars that were optioned the same at the same time. For each car ordered, a confirmation # would be received. It could be the computer system or it could be operator error, but sometimes one in a group was missed, kicked back, or maybe the order was hung up in the computer for a few minutes. However it happened, that order would then drop in the midst of the next group of cars.
The scheduler would schedule them in what ever order he deemed. Add in the possible holdups in the body shop. So for a given batch of cars, relative to the VIN, the body #'s may both up or go down or bounce around.
