With the Blues during the 1974–75 NHL season, Sacharuk proved himself as an offensive-minded defenceman and scored 20 goals and 22 assists over the course of 76 games. He ended the season as the fifth-highest goal scored on the team, and the 20 goals set a Blues single-season record for defencemen, which he held until tied by Jeff Brown in 1992; Brown surpassed the record the following season. Sacharuk scored 14 of his goals on the road, which remains a single-season team record for defencemen. However the Blues also had several top NHL defensemen including the Bob and Barclay Plager, Bob Hess and Bob Gassoff, and traded Sacharuk back to the Rangers in the summer of 1975, in return for winger Bob MacMillan. Back in New York for the 1975–76 NHL season, Sacharuk's point production declined and he managed only 13 points in 42 games, missing almost half the season due to injury. The following season, he started with the Rangers' new AHL affiliate, the New Haven Nighthawks and put up some respectable numbers in the minors with 54 points including 23 goals in 55 regular season games. The Rangers called him up for only two games in the 1976–77 NHL season and he registered no points.
