Has anyone used Mopar MMC Detroit?

There is no "correct" production date. SPD is on your fender tag. Doesn't mean that's the actual day it was built as I noted above. No way my Bee was built on the 25th, with an exhaust manifold cast on the 27th.

69 didn't get drivers door VIN stickers... and even if they did '70's up don't give a day, just a month and a year!
superbirdbentdoor 148.jpg