I have a 2016 Silverado Crew cab 4x4 5.3 LTZ with 45k on it now. I have had it for 17Months(I drive a lot). It started to get a faint vibration about 15k ago and it has gotten progressively worse. I just put in Billstein 5100 shocks all around and a powerstop brake kit and the truck feels smoother than it ever did with zero miles on it. I can't get over the difference, all of my vibration is gone. I was driving today on the highway and looked down and was doing 85 MPH. I never drove that fast as the vibration started about 75. I don't know if this will solve everyones problem but I can't even begin to express the night and day feel of the truck. GM should have built them with these parts!