Just shy of your mileage. I have ordered multiple FCA vehicles; not that it should matter, but that may have helped.
What I did was to first telephone RAM (politely) to get a Case # set-up.
That Case # & notes goes immediately to an FCA/RAM Customer Service official who quickly communicates with your dealer, and can authorize/approve any $$ assistance for the dealer to effect repairs.
That official will also quickly communicate with you, so you know what is going on.
The dealer naturally does not want to pay for the expensive repairs, as they did not build the truck.
It does help to have a sharp & involved Service Mgr. @ your dealership, no doubt.
I really hope that you find working it this way through the factory to be as gratifying as I did, my friend.