He led the restart on lap 153 , but Earnhardt , Jr. quickly regained the lead for three laps , before Biffle repassed him .
Greg Biffle assumed the lead from Earnhardt , Jr. on lap 151 after pit stops .
Greg Biffle led the restart on lap 153 , but Earnhardt , Jr. quickly regained the lead for three laps , before Greg Biffle repassed him .
Greg Biffle assumed the lead from Earnhardt , Jr. on lap 151 after pit stops .