Bird chirp
 

Hey guys, i have a 2000 2wd 2door blazer. I've recently lowered the vehicle. It's a 3-4 drop, spindles and springs up front and leafs and blocks in rear. I have also replaced all the shocks around with nitro 2s. All urethane bushings as well i.e. sway bar, endlinks and upper and lower a-arm bushings. My question is anytime i go above 30 or 35 mph it sounds like a bird chirps maybe every other mile, smooth or bumpy road. Everything is tight and torqued to spec, ive checked it numerous times. Definetly sounds like its in the front. The vehicle drives just like it did but a little lower. It really has me puzzled on what the problem could possibly be. Thank you in advance for any of your help.

I had a similar problem except I started hearing it after I lifted my 95 blazer and put bigger tires on it. After a while of blind searching for the noise, I discovered that the balancing weight on my wheel was rubbing on my parking brake cable going into the rear drum. So I'd say you should check and make sure that everything is routed ok and not touching any moving parts. Hope this helps!