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I have a 2019 570 SP. I noticed recently that it intermittently "moans/grinds" in 4wd. Seems to happen after 4wd is needed, such as after a large mud puddle. Just rode 500 miles, and it hasn't changed.

I checked the front diff, and the fluid was full. The machine has not been in any serious mud, and no changes of tires, drive shafts, etc.

Thoughts?

Thanks!
 

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You have the SP so I assume you have active decent control, so my question is does the groaning only happen when you let off the throttle, and the switch is in ADC mode? If that's the case I would guess that your ADC fluid is dirty and needs replacing. If it does in under power then disregard my comment.
 
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