2016 Colorado 4WD Issues

[BrianC.]

I got a 2016 Lifted (6 inch) Diesel Colorado with a 6 foot bed at the end of October. Since then I ran into an issue where you can hear a knocking noise from the front end when you turn while its in 4WD.  I took it to the dealer and they have been trying to fix the issue but its going on 6 weeks (they had it for 3 weeks trying to fix the remote start before that).

 

They thought they fixed it with a new axle, one CV (?), new fabricated spacers, and tilting the transfer case i think..  I got it down to the end of the service entrance and it made the noise again when I turned.  What can it be?

 

Today they tried to buy me out by offering me a new trail boss (very base model) and I would have to pay more than I am now and not have the bells and whistles my current one has (if I ever get to drive it).