I wondered the same thing. When we picked up ours, there has been no leaks so far, but our antenna would raise, but would not turn. come to find out, they put putty right up against the arm, and it was stuck. FR missed it, My dealer missed it, and I should have checked better when I did my walk through. It was a easy fix, but made me wonder.
2004 Chevy Avalanche Z66 W/Transmission Cooler
2011 Grey Wolf 28BH
Blue Ox Sway Pro WDH
2 Beagles (Snoopy & Dexter)