Hi Dan! First time user and find your posts extremely informative! I have a brand new 2019 Silverado LT with the BFG KO2's and have been noticing my rear end bouncing like a pogo stick, which is why I'm here. When you installed the Bilstein 5100's, did you do all 4 our just the rear or front? My main issue is the rear end. It bounces like crazy, even on paved roads (albeit bumpy roads). Thanks for your input!