My son had the Z for a month and was sorry to report the underbody shield had come loose and was temporarily secured. At a glance it seems like it is of little value. Nothing structural and would not seem important to stability at even high highway speeds. Our roads are not salted/sanded. Is there a fix (seems to have come loose in back allowing front to disengage from valance) or discard OK? I can have it on lift and replaced IF needed. John