As a junior, Brown again started all 11 games at safety for the 1973 Michigan Wolverines football team that compiled an undefeated 10-0-1 record and allowed opponents to score only 68 points (6.2 points per games). Brown also returned 14 punts for 125 yards (8.9 yards per return), including a 53-yard return for touchdown against Michigan State. He also contributed 55 tackles and two interceptions. At the end of the year, Brown was selected as a consensus first-team defensive back on the 1973 College Football All-America Team.