The club had little success throughout the 1960s and 1970s, despite being briefly managed by Stanley Matthews, and were forced to apply for re-election after breaking FA rules on illegal payments in 1968. Gordon Lee guided the club to promotion back to the Third Division the following season, where they would remain until relegation at the end of the 1977–78 campaign. John McGrath steered the club to promotion in 1982–83, though he departed after relegation became inevitable the following season. His assistant, John Rudge, stepped up to become the club's longest-serving and most successful manager, leading the club from 1983 to 1999. Under his leadership Port Vale won promotions in 1985–86, 1988–89 and 1993–94, lifted the League Trophy in 1993 and reached a post-war record finish of eighth in the second tier in the 1996–97 season.