Attention: TDR Forum Junkies 
Seems like I picked up a shimmy in my '06, it only happens when under light throttle, at about 50mph. Almost feels like you're on a road with a bunch of grooves on it, I can feel it on my bottom, and it surges just a bit. Also, my back seat passengers hear what sounds kinda like something dragging, real hard to describe, metal dragging on metal. I wonder if I lost a driveshaft weight or something. High speed is fine. When I let off the gas totally or speed up, the shake goes away, but can still hear the noise slightly. 
