The 2015 model, 2500 series I was hinting at in Georgia, "cough" sorta near the town of Bremen, "ahem" had the 3.73s...(btw, looks like 3 identically equipped at the sale price)
window sticker 2500 tradesmanThe 1500 I mentioned, a (little farther North) in Chatt, Tennessee, probably not in the running now, had the optional 3.92, both had limited slip differentials.
Window sticker 1500 tradesmanIf I'm not jumping off the cliff this time, well I hope somebody else will...
Edit
Here's several a little closer to home...North Carolina
A 2014, Ram 2500 6.4L smorgasbord