Hey guys. I have a 2019 pioneer 1000-5. Over the summer I noticed periodic clunking in the rear end. Actually it sounds more like a binding and giving. It happens almost constantly now. It happens woth the rear end locked or in turf mode. The dealer said there us a clutch plate back there that is sticking and making noise. Nothing to worry about. They did document metal filings in the rear diff fluid after a fluid Chang. Is this bull s***?