Super Annoying Squeak

[Maxtheduramaxsierra]

Hi everyone! A couple of weeks ago I went down a few rough dirt roads, and ever since I got back on the pavement Ive noticed an obnoxious squeak that comes from the exterior of my Sierra. It only squeaks over rough roads, and not a large bump like speed bump or driveway, etc. And it sounds like it could be coming from the rear. I dont believe its drive-train related (dosent sound like it, and acceleration or revs do not change it). The squeak is horribly annoying tho! any ideas of what to check?

[sahls01gmc]

Leaf springs?

[00Silverado4x4]

I know you said the sound was possibly coming from the rear but in addition to the rear leaf springs I'd also check the bushing on the front sway bar. They get crud in them and they will squeak real good too.