Can’t figure out the shifting issues. I bought a 2015 RT in July of this year. It had 54,000 miles on it. I’m now up to about 63. Had initial problems with it not shifting right in the dealership told me pretty much that I was crazy. Had to have the rear lifters replaced by another dealership about 3000 miles later. Still doesn’t shift good at all. It hits about high 40s and then the RPM is sticking at about 2000 until it finally lets go. Plus the van is super loud. I already had it flashed. And two dealers have told me that I would be pretty lucky to have anybody pull the transmission because it doesn’t throw any codes