The problem is average people say they will do it themselves and just don’t. People on the forums are a bit different than a general ram owner as we’re enthusiasts, and care enough to read and write here. So there is a better chance people on here say they will diy it they actually will. The industry norm is 85% of vehicles owners perform no maintenance at all. Keep that in mind when shopping used . Especially on things like diff changes and trans fluid changes. I’ve seen people go 40k miles without even an oil change. They just don’t care and sell the car on to the next person, and complain when their tires are loosing their steel belts after 80k miles. Haha. I paid I believe $399 at the dealer for filter changes. My ford f450 is $189.00 at the dealer. I think ram dealers are using this as a profit center. btw, I paid $1300 for oil change, fuel filter change, front and rear diff, xfer case and transmission fluid change. Diesels are expensive to own and maintain.