Jeff SprakerJeffrey D. Spraker is an American professional stock car racing driver and crew chief. He currently works as a crew chief for the No. 63 Chevrolet in the ARCA Menards Series driven by multiple drivers.Racing careerSpraker has 23 NASCAR Busch Series starts. In his first start at Martinsville Speedway in 1989, he started 26th and finished 27th after an engine failure.Crew chiefing careerMotorsports career resultsNASCARBusch SeriesCraftsman Truck SeriesWinston Modified TourARCA Re/Max Series