05 Midnight Silverado with 14,500 miles. I started noticing a noise when letting off the throttle...kinda like a low rumble. It goes away if I engage the clutch. If the bike is just sitting at idle, there is no noise. Anyone with an idea?
Turns out when I aligned the rear wheel, I had the drive belt too tight. I just loosened it a little and the noise is gone. I also tried downshifting kinda hard to see if the belt would slip/chirp and all seems fine.