I have a loud wearing noise that has to do with something in the back of the car. It sounds like it may be coming from the rear driver side of the car. The noise vibrates through the frame (SBC) to the front of the car. This only happens when I am going about 2 mph and if I use the brakes it makes the noise last longer, but the noise/vibration is present when no brakes are applied? Do I just need to lube my car? The noise is extremely loud and sends a vibration through the entire car. Any ideas. I looked and everything looks normal underneath and no bolts are loose?

Thanks in advance

 

TTT