Heads up for you guys:

I was blowing my UDR off with compressed air as usual after a beach run, and noticed that both of my lower control arms were full of sand. The sand was trapped between the cover and the arm itself.

I have been running at a beach with very fine sand, and have probably run 5 or 6 battery packs through the truck there.

I had to remove the arms and remove the covers from the lower control arms to get all of the sand out. Now she's as good as new.