Dragging noise from left,rear side?

[MitchFong]

Ive been hearing this loud dragging noise(like the muffle ris dragging) comming from the left, rear end of the car. Happens when i hit a bump, apply the brakes, etc. But not everytime.
The car has a brand new hand brake just installed. Is there a possibility it is to tight and is dragging on the rotors? Im fresh out of ideas, everytime i hear it i think im losing my muffler. I just have noo freakin clue what it would be. It gets really quiet/goes away almost, when i pull the hand brake up slightly. Its really weird, and drives me upp the wall. Its rather loud(like i said, muffle rdragging noise) and im hoping it has something to do with the hand brake. Any suggestions as to how i could figure this out myself? or should i bring it into the shop and pay an arm and a leg for them to figure it out?
Thanks guys, appreciate the help you can offer. I understand if this is one of those things you have to see/hear in order to make a suggestion.
-MF

[kowalski]

perhaps the Ebrake pads are screwd up... the best thing tou could do is put it up on jacks and spin the tire and see if anything is binding.

[MitchFong]

thats exactly what i am thinking. I got some jack stands im gunna throw it up on and see what happens. Im almost positive it has something to do with the brand new E-brake just being installed.

[MarkH]

When does the sound occur, high speed, low speed, straight line, tight turns, etc. If the sound is a low pitched grinding that occurs when you are making low speed tight turns, it might be a bad rear wheel bearing.