Started working in NASCAR in 1975. First win as a crew chief was in 1985 at Watkins Glen with Ricky Rudd driving. Earned his first victory at Daytona in 1992 with Davey Allison driving. Named All-Pro Crew Chief five-straight years (1991-95). Is a founding member of the Crew Chief Club. Was crew chief for Dale Earnhardt when he won his first Daytona 500 in 1998. After the 2000 season, he retired and became a broadcaster.