There is good and bad information in this forum as with any forum and service varies from dealership to dealership. I had the trans fluid flushed at 65k on my Raptor and I did the fluid and filter service myself at 161k. My Raptor has 185k at this writing and I've never had any issues with the transmission, differentials have never been touched as I've not driven in deep water. Transfer case fluid changed at 149k, must shift into 4low at least 2 times a year, use it or lose it so they say. AC untouched and blows cold. My 2 cents on the subject.