Very Nice,
thanks for that info! i will def get it done before then for sure!
Yep. The same goes for a lot of the other fluid changes in the manual as well. They are geared to lower the costs of maintaining the vehicle. As long as the vehicle lasts beyong the warranty, they're good as far as the manufacturer is concerned.
Opinions vary on when you should do them. With the reputation of these transmissions, I wouldn't go longer than 30,000 miles for a fluid and filter change. Not a flush, a drain and drop the pan and change the filter.
Change the transfer case fluid at the same time. I would also change the gear oil in the rear axle as well.
The front axle is usually just along for the ride, so you can go longer before a fluid change on it. I do 60,000 miles on it.
You can usually go along with the manual on the engine coolant. But once you change it, change it every three years.
With the new brake fluid these trucks use, I have no idea on it. Just keep an eye on it and change it when it gets dark. Regular old DOT3 is every three years but this new stuff has been clear so far since 2019. Hard to find too. I had to mail order mine just so I had a bottle on hand.