Squeak in rear of trailblazer

[SpeedKing]

I recently towed a enclosed trailer back from Colorado to Minnesota that was pretty loaded down. Ever since I took the trailer off, I hear a squeak in the rear end over every bump I hit. The shocks look good and so do the springs. I am thinking it might be rear sway bar links, but I don't really know how to tell for sure. They aren't broken, but they seem to have some side to side play. Any ideas?

[jimmyjam]

if you're riding on the original links in a 2002, chances are you need them regardless.

[SpeedKing]

Sounds good. Thanks for the help.