AJ Allmendinger, who anchored the winning team in 2012, returns to Michael Shank Racing. His teammates in the No. 60 Ligier Honda will be John Pew, Oswaldo Negri and Matt McMurry.
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Chip Ganassi Racing drivers Jamie McMurray and Kyle Larson will be part of a second Ganassi car in the sports-car race. The No. 02 Riley BMW will be a NASCAR-IndyCar mix that will include Scott Dixon and Tony Kanaan.
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Andy Lally, a four-time class winner of the 24-hour race and the 2011 NASCAR Sprint Cup rookie of the year, will be in the GTD No. 44 Magnus Racing Porsche.
Qualifying will be Thursday afternoon for the 24-hour race, which starts at 2:10 p.m. ET Saturday.