P8B203175 SPD-B14 (Tuesday, November 14, 1967)
P8B239741 SPD-C22 (Friday, December 22, 1967)

36,566+ assigned VINs in ~27 UAW working days (~1,400 cars per day) out of two shifts on each of two assembly lines at the Hamtramck, Michigan plant.

These VINs would be Barracudas, Chargers, Darts, & Valiants.

"They" assembled 45,412 1968 model year Barracudas between July 31, 1967 & July 12, 1968.