David Gilliland will drive four races for Joe Gibbs Racing in a fourth JGR Toyota at the end of this season. He will also drive the Wood Brothers No. 21 at Atlanta Motor Speedway this weekend, subbing for an injured Bill Elliott. Gilliland had been replaced  by Bobby Labonte for seven races in TRG Motorsports’ No. 71. Labonte was replaced  by Erik Darnell in the Yates Racing’s No. 96 Ford.