Regular Maintenance

I own a 2021 Taco and outside of doing oil changes every 5K miles and replacing the tires, I haven’t done any other maintenance. My truck currently sits at 70K miles and I’m wondering what else from this list is necessary and when?

- differential fluid

- transmission fluid

- power steering fluid

- coolant flush

- transfer case fluid

FYI my father is a mechanic and seems to think non of these are necessary so I’m open for a second option lol. I absolutely love this truck and it’s fully paid off. I’d love to keep it running as long as I can.