I have a 2019 Ram Rebel. Love the truck. Just took it wheeling for the first time last week in Colorado and it did great in varying terrain even with my balding factory Duratracs. I just put Toyo Open Country AT3’s on it. Can’t wait to try them out.
Be prepared for water leaks on the 5th gen. Rear sliding glass window frame cracks and leaks in the cab. The 3rd brake light and the shark fin have been known to leak as well. I ran some sealant in the seam joining roof to cab and haven’t had any more leaks.
Others have mentioned exhaust manifold cracks and hemi lifter ticks. I haven’ t had problems with those (yet!)