Water Question

I went out for my first ride on my new Grizzly yesterday. Absolutely loved it! It’s tons of fun and feels like it will go anywhere. My question is about going thru water. I didn’t go thru any water that’s too deep, I’m not worried about water in my air box. I was just wondering if I should check my differentials or anything else for water in the fluid. I’m new and still learning about the bike. Are the seals pretty good on these bikes?