The date on the body tag is only a general indicator of a cars' final-assembly date. The tag was produced by Fisher body shortly after the production order was released. Fisher generally observed an ABCD sequence but not always; not at all unusual for them to skip weeks. February-March '69 at Norwood was one of those periods. There was no 02C or 03A. 02D tags span February 19-March 14.
The data sheet shown was compiled by the cars' owner and did not come from Chevy Muscle Docs. Since N614034 was final-assembled on or about March 13, the drivetrain component dates listed could be original to the car.