Hello, I am new to this forum. I wanted to post to this topic to add an experience I am currently going through. I purchased the Rough Country 3.5" lift for my 15 CC z71, and when I'm in 4 wheel drive I have a loud growling and vibration felt through the floor board. I had it done by a lift shop in Virginia Beach that seems to be pretty decent. I have seen that some members are running that kit without problems and I am not sure what my issue is, So I will be taking that kit off and I am having an RCD 4-6" adjustable lift installed. From what I understand they actually brought in the guy who designed the STABILITRAC system for these trucks, and it has bilsteins all around. I was assured that this lift will resolve my issues. "Fingers crossed" Its costing me more in the end and I did go to a different shop that does these trucks for the dealer next door, but I would rather not have these types of issues with the drive train. To all of you running this kit I'm glad you didn't have this issue, I just thought I would add this to the conversation.
