Clunking sound

[Ocracoke4ever]

I had Bilstein 5100s installed last July with the fronts set at 0.85. Love the difference in ride quality over stock. When the weather turned cold here in southeast PA I started hearing/feeling a clunking as I drove. Even the wife noticed and pointed this out! It seems to be coming from the rear. On very smooth roads the clunking is almost non-existence. On all other roads it's very apparent and annoying. Never had this before the Billys were installed. Not sure if the Billys have had an effect on this. I had my installer take a look at the underside of the truck and didn't see anything loose or missing. Any advice or thoughts is greatly appreciated!
Dave

 

[DougR]

The most recent work is a likely suspect. It's easy to inspect rear shocks for a loose mount. Grasp the lower end of a rear shock and check for any looseness on the lower mount point. Visually check for bushing compression at the upper mount location.