I had mine on for a week and then removed. Recently, I had my tires off and took a close look at my springs. I can see where ON THE SPRING mine were rubbing. If the salt doesn't break them, that guard sure would have.

1998 Silver Frost SVT Contour born on...8/28/01[/i]
American Iron Shootout Radial Tire 2 Class Champion, Cecil County Dragway April 20, 2002