I've noticed a "creak" (for lack of a better term) coming from the rear of my 2000 Silverado (4x2, V6, 125k miles) when I release the brakes after coming to a complete stop.
This isn't a jolt or anything, but has a slight motion associated with it, almost as if something (like a small child) had just stepped off of the tailgate. Its that kind of motion, only it seems to be coming from lower underneath the truck - if that makes any sense.
I initially thought this was a problem with worn brake pads, but quickly eliminated that as a possibility. The pads are fine, my brake fluid is fine, so as far as I can tell, it isn't anything with the brakes.
Does anyone have any wild guesses as to what I might want to check next?