2000 Polaris scrambler 500 4×4 won’t drive in the water

I have a 2000 Polaris scrambler 500 4 x 4 that I just bought. When I drive it in the water that comes up past the wheel wells it seems that the drivetrain don’t work like something fills with water, I change the belt and I did it again but got stuck in the same spot the engine wines but it doesn’t go anywhere I revved the engine nothing moves. kidnap be a broken seal where there is water getting in somewhere in the CVT???? help

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