Smithley, 26, returns to drive for the team for the fourth consecutive year. He will pilot the No. 0 Chevrolet.
The Feb. 16 season-opener at Daytona International Speedway will be his 100th series start.
“I’ve been working hard this offseason to make my fourth year with JDM the best ever, I think it will be,” Smithley said in a press release. “I’m so blessed to be given the opportunity to race here by Johnny and all my sponsors. Daytona will be my 100th Xfinity start and all but two of those races have been at JDM. It’s an amazing race team and family, and I can’t wait to get this season going.”
Leicht, 32, is set to drive the No. 01 Chevrolet in his first full-time season since 2007 with Robert Yates Racing. That season he won his only NASCAR race at Kentucky Speedway.
Daytona will also be his 100th series start.
“I’m super stoked about my opportunity to drive for Johnny Davis,” Leicht said in a press release. “He has competitive cars with smart people in his stable and I’m looking forward to seeing what the season brings.”
Jani-King will be an associate sponsor of Leicht this season.
“Stephen is a great talent to have in our arsenal this season at JD Motorsports,” owner Johnny Davis said in a press release. “With his experience spanning nearly ten years in the series, we are confident that he will be able to take care of his equipment, which as we all know is very important for family teams. I am genuinely looking forward to seeing how he can improve our operations this season with all the knowledge he brings to the team.”
The announcements for Smithley and Leicht follow the news that Ross Chastain will return to drive the No. 4 Chevrolet in 30 races, in addition to competing in three races for Kaulig Racing.