Long time Lurker here but devoted Legacy owner. Had a 2005 LGT replaced by current 2009 Spec B enhanced with a stage 2 Cryotune. Love the car and the tune!
A couple weeks ago while driving on a moderately bumpy road I heard a 'bang'. Thought I drove over something on the road that hit the under carriage. After that there was a mysterious 'rattle' in the front left quadrant. anyways after much investigation (finally hitting everything that moves in that area with a rubber hammer) this is what I found hidden in the bottom spring pocket broken off from the top of the spring...
Coincidentally, this happened a few days after a complete front brake overhaul (rotors, pads, caliper rebuild). I was sure it was brake related and re-checked all my work for second time. Now I know the brakes were fine!
Looks like the spring was defective from the start based on the small rusted area of the fracture. Hope this is useful to somebody.....so I'm off to the dealer for a new spring since I'm not interested in lowering the car with aftermarket stuff.