I know there are a bunch of threads on this topic but I'd like to gather opinions on what this noise is. To give you some background on this:
2018 RZR Turbo XP4, 650 Miles
1. Noise starts occurring at 25 MPH, gets louder the faster you go, happens in 2WD or 4WD.
2. This has a brand new front differential in it. Polaris replaced the front differential under warranty less than 2 miles ago, the pinion bearing let loose in the original diff and sounded exactly like this.
3. I checked the belt, its in good shape. I checked the wheel bearings, they're in good shape. The driveshaft seems to spin perfectly straight, has no vibration, the carrier bearing feels tight and the shaft does not move at all when pulled side to side or up and down. There is nothing rubbing on the driveshaft from front to back.
4. I verified that the new differential is full of fresh fluid.
Here are the videos:
Looking down at the driveshaft:
Looking back in the tunnel towards the carrier (noise gets quieter with camera facing away from front diff):
Thoughts? My plan is to contact my dealer this morning and get it back in, been down for over a month now