In the parts book under 13-64- _ _ front bumper and 13-66-_ _ rear bumper it does not show black as a rubber bumper color in 1971.The parts book I am looking at is revised April 1972. Now, did some make it out in early 1971, who knows. Lot of odd ball stuff was built back then, I own an odd ball E Body the way it was built with and without options.