Lofton started his racing career in mountain bikes before moving to late models. He went on to run in both the NASCAR Camping WorldEast and West Series, before landing in the ARCA Re/Max Series. In 2008, he began driving the No. 6 Toyota full-time for Eddie Sharp Racing. He earned his first career win in 2008 at Michigan International Speedway. Lofton narrowly won the 2009 ARCA Series championship over Parker Kligerman in his sophomore season. Throughout the season, he earned six wins, fifteen top 5s, nineteen top 10s, and five poles. In 2009, Lofton also made his Nationwide Series debut at Michigan. Driving the No. 14 Lofton Cattle Toyota for CJM Racing, he qualified 19th and finished 16th. In 2010, Lofton drove the No.7 VisitPIT.com Toyota for Red Horse Racing. He also ran a partial schedule in the Nationwide Series, driving the No. 71 Weekend Warriors TV Toyota for the same team, and the No. 27 Ford for Baker Curb Racing. In 2010, Lofton had a best qualifying effort of third in Darlington, a best finish of third at Dover, and earned four top-five and eight top-10 finishes in the Camping World Truck Series. He finished 12th in the driver point standings. For 2011, Lofton joined defending champion team Germain Racing to drive the 77 truck. However, after Texas, Lofton and Germain parted ways. On June 22, Lofton announced on Sirius NASCAR Radio that he would return to Eddie Sharp Racing for the remainder of the season. He debuted in the No. 46 CollegeComplete.com Toyota at Kentucky Speedway on July 7 with a 15th-place finish. Starting July 22, 2011 in Nashville, Lofton returned to the No. 6 where he previously won the ARCA series in 2009 in the No. 6. Lofton drove the full season for Eddie Sharp Racing in the Camping World Truck Series, driving the No. 6 for the 2012 season. On May 18, 2012, at Charlotte Motor Speedway, Lofton captured his first win, holding off Brad Keselowski and Todd Bodine.
Off-road racing
After the 2012 season, Lofton announced that he would be scaling back his NASCAR schedule in 2013, instead primarily competing in the new Stadium Super Trucks being promoted by Robby Gordon. He collected three wins and resulted third in the standings behind Gordon and Rob MacCachren. In 2014 he competed at the St. Petersburg, X Games Austin, and Las Vegas rounds of the Stadium Super Trucks. Lofton won the Best in the Desert Mint 400 Overall and Trick Truck class in both 2015 and 2016.