In 1983, Anderson closed his operation, and Yarborough moved to the No. 28 Hardee's Chevrolet owned by Ranier-Lundy, competing in 16 events. He won four races, including his third Daytona 500, his sixth Atlanta Coca-Cola 500, and swept both events at Michigan, along with three poles. In 1984 he repeated by winning his fourth Daytona 500, becoming the second driver to score back-to-back wins, the Winston 500 at Talladega, a race that featured 75 lead changes, and the Van Scoy Diamond Mine 500, along with four poles. Yarborough also captured the IROC VIII championship. In 1985 after his team switched to a Ford, he won his first Talladega 500 and scored his final win in the Miller High Life 500 at Charlotte Motor Speedway. He also finished eighth in the final standings of IROC IX.