Well started getting that rear end "clunk" on my 2012. Just under 39k miles. Not consistent, usually when going over a rough washboard road or turning into driveway. Ordered new sway bar bushings and end links. Going to add the little clamp blocks to keep sway bar from shifting side to side as I can see it has been shifting. I have the Ford Racing P springs, LCA's & mounts and Adj Track bar. Anyone else experience this?