My 19 legacy saggs a bit on the rear end to the point where the fender is cutting into the tire. It has done this since new, but me procrastinating never took it in to the dealer while it was under warranty. Is this a common issue on them? The rear end does sit lower than the front end. Does anyone have any suggestions? Spacer? Coilovers? or a better suspension set up? I don't really carry any weight on the rear. I do have a full size spare and maybe a 24 pack of water sometimes. I also had two people in my back seats which combined probably weight less than 250 and it was constantly rubbing on my tire