I have a 2020 2500hd diesel with a 5inch bds lift and air lifter 5000 airbags and does the same thing. When I’m slowing down or only making a right turn there is a vibration/ humming noise coming from the rear right side that is annoying. You can hear it in the cab. It goes away from time to time but always comes back. The place I got my lift done at couldn’t find anything wrong. Thought it might be the heat shield that gets put on the exhaust to protect the bag. Prior to the lift it didn’t make any noises. Was anyone able to get more feedback on it?