53 bolck
The first number or position, in the vin. number designates were the truck was built. A "1" means that it was built in the USA,and a "3" means Mexico.
The 11th position is the city the truck was built. J-St. Louis, S-Dodge City,G, Saltillo, and M-Lago Alberto.
On the left side "B-Pillar", is the "Safety Certification Label", the last line has a designation MDH: Month, Day, and Hour the truck was built. The first line has the Date of Manufactury, listed by month and year.
All this information came from the Dodge Service Manual, Introduction, Pages 1-4. Hope this answers your question.