Both Dale Earnhardt Jr. and Denny Hamlin had their qualifying times disallowed for infractions discovered during post-qualifying inspection on Sunday.
The left front of Earnhardt's No. 88 Chevrolet measured too low in ride height. The track bar split on Hamlin's No. 11 Toyota was three-quarters of an inch larger than the allowable 3.0 inches.
Both cars will start from the rear in their respective Budweiser Duel at Daytona qualifying races on Thursday night