Hi, does anyone know if the replacement 68' Camaro bumper guard rubbers would work for the Impala? The front look about right but the rear may need a little modification. For what Ive been told they will, but I would like a second opinion as they do cost about $20 each. If anyone has an idea, or even better, a place where they do sell OEM bumper rubbers for the 68, I would appreciate it. Thanks.