Every time I go over a bump my drivers side rear makes a squeaking noise. Ideas? It's getting progressively louder as time goes on so I figured I should look into. Thanks guys

Im guessing its common because I have that squeaking noise too..

buuuuuuuuump

i had a light squeak in me rear passenger side before. it happened to be a leaky strut so i replaced it and the squeak went away.
bushings can also make squeaking noises. have someone jump on the door sills to bounce the car up and down and follow the noise (but don't go under the car).