Yaremchuk only played in 34 games for the Leafs over four seasons (1982-85), scoring 1 goal and 4 assists. The Detroit Red Wings signed him as a free agent in 1985, but they assigned him to their Adirondack Red Wings farm team for the whole 1985-86 season.
He then left for Europe, playing eight seasons in Finland, Switzerland, France, Italy, and Great Britain. In his last season as a player (1993-94), Yaremchuk scored 146 points in only 40 games for the Durham Wasps.
Gary is the brother of Ken Yaremchuk.