The dealer just quoted me $6100 to replace my transmission. It has a pretty noticeable slip while shifting into 4th gear and it squawks while shifting into 4th gear. Right now it drives pretty well other than that. I don't know when it'll finally crap the bed but I'm not at all interested in paying $6100 for a trans in a 2015 truck with 120k miles. The transmission should've lasted easy longer. The 4r100 in my 7.3 Excursion went over 250k miles of hard driving and cross country towing with a old school engine tune.