Squeaky Squeaky!!!

[scourge at cogeco.ca (Scourge)]

Heh, This is interesting. 

So I've had this developing squeak in my car over the past couple weeks .... it kept getting louder. At first I thought it was the rear bench(leather, not bolted down). I figured it moved a bit and was rubbing on something.
 
Today I discovered this is not the case.
 I was driving through a parking lot at low speeds and going over the speed bumps when it hit me .... it only makes the noise when the rear end goes over the bumps. So after I parked I hopped out and gave the rear end a shove down. Sure enough .... ding ding, the poly rear axle bushings I only put in a couple months ago(if that). The lube was used ... but apparently it's not there anymore. lol.

Any ideas on how to kill the squeak? If it matters they were the prothane bushings. 
To put this in into perspective, I have all poly motor mounts, no cat, single stainles muffler, window down, and I was still laughing my ass off at how loud these are.

-George -might as well make my car as squeaky as I can now.