He was the property of the New York Rangers but spent his first three pro seasons in the CHL with the Omaha Knights.
There was little chance of Lefley getting a chance to play for talent-laden Rangers so he was left unprotected at the 1972 Expansion Draft. The young forward was claimed by the New York Islanders and played a solid checking role in 1972-73. He played most of the next year in the minors before he was claimed by the Kansas City Scouts at the 1974 Expansion Draft.
Lefley played 29 games for the Scouts in 1974-75 but spent most of the enxt two years in the AHL. He suited up for 129 games over two seasons after the franchise relocated to Colorado in 1976. Following the 1977-78 season, Lefley joined Dusseldorfer EG in Germany for three years before retiring in 1981.
In October of 1997, he died in a car accident while returning home from a game between HC Bolzano and Dynamo Moscow. Reportedly, Lefley fell asleep at the wheel and hit an oncoming truck.
Received these blue ink signed cards TTM.