Found this by accident, if it's been on here or is on here, I apologize...

[PandaRam2500]

Complete MOPAR sales code(s) descriptions and breakdown. I see that it's dated 2008 but I'm pretty sure the codes stay the same. Spot on with my 2014 Ram 2500. For example, there is a build/sales code of 4PC. That's a "build for customer" code for Hertz Rental. My truck was, in fact, a Hertz Commercial Rental/Fleet truck when new. It's amazing the number of "build for customers" customer codes. I saw one for Uncle Ben Rice. There are 214 pages in the PDF. It takes a bit to decipher but if you have a build sheet of the "codes", it's pretty cool to waste time on. Also if'n you're looking to buy/order a MOPAR vehicle and wanna know what it has for options installed...Here ya go.

http://starparts.chrysler.com/starlibrary/reference_docs/salescode.pdf

 

[PandaRam2500]

Page 27 is where the codes you would be more likely to browse start. 7CG is the sales code for Mary Kay Cosmetics if'n you have a desire for a pink truck. Page 70 is also a good start point.