Joe Gibbs Racing announced Tuesday that Tifft, who was supposed to drive the No. 18 Toyota in the American Ethanol E15 250, would be replaced by Hornish. Hornish hasn’t raced anything since the 2015 Sprint Cup finale at Homestead-Miami Speedway.
Last week, Richard Childress announced Hornish would drive its No. 2 Xfinity car for the July race at Iowa and at Kentucky Speedway in September.
Of Hornish’s three Xfinity wins, one was at Iowa in 2014.
Tifft also was supposed to drive in the Camping World Truck Series’ Speediatrics 200 at Iowa in Red Horse Racing’s No. 11. The team announced Wednesday that German Quiroga will drive for Tifft.
Tifft, a member of the current NASCAR Next class, has competed in six Xfinity race this season, including three in the No. 18 car. His best result is eighth at Talladega and Dover.