 His most productive season came in 1972, when he recorded career-highs in wins (16), ERA (2.40), starts (32), shutouts (4), and innings pitched (236⅓).He was traded along with Fritz Peterson, Fred Beene and Tom Buskey from the Yankees to the Indians for Chris Chambliss, Dick Tidrow and Cecil Upshaw on April 26, 1974.Kline missed the 1975 season with arm problems, and spent 1976 back in minor league baseball before making 16 relief appearances for Atlanta in 1977, his last Major League season.