Grey Way won 51 races, including one in Australia from 164 starts between 1972 and 1980 when trained at Washdyke by Pat Corboy.
South bred Grey Way from a mating of Grey William and Waybrooke.
A daughter of King's Command, Waybrooke was unplaced in four starts for South when tried as a 5 and 6yr-old.
Grey William stood at the Strathconan Stud of Bill Grant at Washdyke.
Grey Way was the first and only surviving foal from Waybrooke.
Grey Way, a grey gelding dubbed the Washdyke Wonder, won his first start as a 2yr-old at Rangiora in October, 1972, when ridden by Max Skelton.
He had his last win on the same track as a 10yr-old eight years later with Alex Cowan jun the rider.
Grey Way carried 60.5kg to win the 1977 Easter Handicap at Ellerslie in the hands of Bob Skelton and 60kg to win the 1976 Stewards' Handicap at Riccarton with Ali Robinson the rider.
His other wins included the 1976 Awapuni Gold Cup, 1974 Chirnside Stakes at Caulfield and 1977 North Island Challenge Stakes.
South took out a permit to train in 1998 and subsequently prepared the winners of 24 races.
He had his most recent win with Imajoker at Washdyke on December 28.
