Same thing went wrong with mine
Sorry I should have said something ,but it all got fixed by dealeri had a noise in my rear that continued to get louder and we found that one of the bearings that hold the ring gear in place had failed. The bearings have a plastic cage that holds the balls in place and it had broken alloying the bearing to seperate. Also i noticed before disassembly that the axle shaft had some movement up and down where it goes into the rear diff. Can am replaced the whole rear with a new one.