I just bought a 2004 ar and I get a metallic vibration/rattle on bumpy roads, more at low speed regardless of suspension level and it is driving me crazy. It sounds like it is coming from the spare tire well.

I have removed the license plate, spare tire compressor and bracket, emergency triangle and the jack / toolbox and both the net and cargo cover. I still have the rattle!

I searched the forums and my best guess is the brake shield.

Any other ideas out there? Thanks!