Hey Tim, very nice truck I’m jealous. As I understand it 4wd auto runs in RWD mode until it detects slippage then it sends power to the front wheels. I like it for mixed conditions so you are still good on dry pavement as well. I get a lot of mixed conditions in my area in the winter.
I have this setup on my RAM.
I agree that a dedicated 2wd option would be nice on the gear box. Ram seems to offer this setup (4wd auto, 4low,4high) and they used to offer the old transfer case with just 2wd 4lo and 4hi on the lower trims and the classics. With the old setup you couldn’t run 4wd on dry pavement.
I’ve owned both setups. I owned the old setup on my 2017… it seemed robust but I also had a 392 diff to help towing and off-roading on that truck as well. The 392 diff didn’t help mileage much lol.
I apologize if I’m stating the obvious on these setups.