So I was getting the quads off the trailer after sitting for 3.5 months and one makes this loud 'clanking' sound from the rear end. Its a 2000 Warrior 350.
As best as I can tell, its from the axle area but I'm not 100% sure. It happens when it is rolling. It didn't do this when we put them on the trailer back in march.
Here are two videos showing the sound;
The second video shows it the best. I dont know what it is... bearings maybe? Please let me know!