Yeah, it is BS. They are claiming the pitch angle of the front drive shaft is causing the noise in the Transfer Case, however they never pulled it to see if that was actually causing the noise. I agree, the installer has done several hundred of these 5" lifts on Newer Chevy's and have never heard of this, neither has the manufacturer. So I am lead to believe there is an warranty issue with the Transfer Case. I have a found a dealership that is willing to work with me, I will keep you posted on what is found.