I have a 2010 UCSE5 and have the same sound coming from my primary from 1050 miles. I now have 2650 miles and it has been to Harley 5 times . They replaced the trans, clutch, basket, hub, race gear and bearing, compensator and lifters, and i still have the same sound except its getting louder and now i have a whine in 1st gear that i didnt have before. Today i was told by the Manager of Harley customer care in Milwaukii that they know i have a bad sounds but since they tried and cant repair it , now get this. IM GOING TO HAVE TO LIVE WITH IT....so now i have a $38,000.00 bike that sounds like a bucket of bolts and Harley isnt doing anything about it. They wont even look at it anymore. Anybody want to buy a really expensive anchor for a big boat.