Shafer arrived in Detroit radio in 1961 after previous stops in Dover, Del., and Tucson, Ariz. His first Motown gig was record librarian at WJBK. But by the fall of '61, Shafer was the nighttime jock at WJBK as Jack the Bellboy. His mixture of comedy, drop-ins, voices and on-air friendliness helped make his show a smash hit. He also became known for his fabulous record hops, which featured future superstars Stevie Wonder, theSupremes and Martha and The Vandellas.
By 1964, Shafer was doing afternoon drive at CKLW, part of a lineup that included Bud Davies, Joe Van, Ron Knowles, Tom Shannon and Don Zee. Shafer was gone from CKLW by late 1967-early '68. He returned to the Big 8 as a jock in 1971, eventually taking over mornings before leaving again by 1974.