2014 Ram 2500 5.7l owner. Worst vehicle I've ever owned. 43k on it. First transmission rebuilt at 20k due to a weeping case. Second when the the torque converter failed at 32k. Currently in the shop for the torque converter and valve body failure again but parts on back order for several weeks. Truck also surges when trying to accelerate. Worst transmission mapping I have ever experienced. It's always bogged down in the wrong gear and won't downshift. Steering issues. Chrome bumpers replaced due to rust. Front leather seat covers replaced when they fell apart at 20k. Rears look cracked and worn even though they are rarely used. Numerous electrical glitches, radio and steering wheel controls. Power mirrors replaced when they stopped folding. Rear brake caliper seized and smoked the brakes. $1200 replacement after they refused to cover under warranty. Driveline whistle that the techs hear and say it's not normal but can't find the source after 3 days. FCA refuses to spend more time so they say it's normal. Rubber door trim has gone all wavy and stretched. On top of all that there have been more recalls than I can count.
It's unfortunate because it is a nice looking truck with a lot of features that I really like but reliability is more important to me than looks or gadgets. I can't imagine owning this beyond the warranty period but selling it is tough too. The resale value is terrible.
All vehicles will have their issues but from what I've seen and read, Rams seem to have more than average. Spend some time on the Ram forums, wish I had.