2008 RZR 800 Clutch Rattle only on top end.

On top end acceleration i get a rattling or chattering sound from sounds like the driven clutch and EBS doesn’t work or is jerky when working. Not sure what to fix or replace.

Any information would be helpful and what would be a good clutch kit for my rzr. 26 in tires, head pipe everything else is just stock

Thanks,