Drain and fill gaskets for the diff are the same from what I could tell when I did mine. You don't need to change the transmission gasket on MT at least since it's just a solid washer.
I just bought a bulk pack on Amazon for like 5 bucks.
Edit:12 bucks for 10, and was Prime eligible at the time.
https://www.amazon.com/gp/aw/d/B01FU...op_mb_pd_title