So at this time I'm experiencing a "noise" in the transfer case of my 2011 2500 Crew Cab. Took it to the dealer and was told "NORMAL" How ever it was quiet for 35,000 Kilometers and now its noisy and this is normal? Now I don't want to hijack this thread and will start a new one but would call it the same thing, But it appears my issue is different, I have no visible oil leak.