I had several MOPAR cars over the years and two Ram Trucks. I had trouble with all of them, continuously. I have a thick head and learn the hard way....over and over. The last one had the transmission fail at 40,000 miles. If I hadn't had a good friend who was the Sales Manager at the dealership I would have ate the cost of replacement. This was shortly after Mercedes/Benz merged with Chrysler. That was a nightmare. I also heard the new Ram trucks still have the same transmission from back then.
Every 4x4 truck of every iteration, foreign or domestic, and I had several of each, had problems. Maybe not my Nissan Frontier so much, but the check engine light was on starting at about 10,000 miles. I finally put a piece of black tape over it. I sold it to a guy after I had it for 15 years, who had to put a new engine in it at 120,000 miles, right after he bought if from me. He was a skilled mechanic with all the toys in his garage, and was not problem for him. He didn't care as I sold it to him for a nice price for him.