 Jacor made arrangements to purchase WPBD and transfer WGST's call letters and format onto the new station.As part of these moves, Jacor divested WGST to the Moody Bible Institute, a Christian radio organization in Chicago, for $2.3 million.On June 30, 1989, Moody changed WGST's callsign to WAFS and changed format from news/talk to Christian talk and teaching; Jacor concurrently changed WPBD's call letters to WGST (640 AM).