Any potential penalties would be determined Tuesday by NASCAR
NASCAR officials announced Saturday that the No. 33 Chevrolet driven by fourth-place finisher Austin Dillon in the XFINITY Series failed post-race inspection at Dover International Speedway.
The Richard Childress Racing entry measured too low on both sides in the rear after Saturday's Buckle Up 200 presented by Click It or Ticket, the 12th of 33 races this season. Series officials said any potential penalties would be determined Tuesday at the NASCAR Research & Development Center in Concord, North Carolina.
NASCAR removed rules restricting ride heights in the Sprint Cup Series ahead of the 2014 season, but those limits remain in place for the XFINITY and Camping World Truck Series.
The No. 33 driver ranks third in the XFINITY car owner standings. Dillon competes for the drivers' championship in the Sprint Cup Series and is not eligible to collect XFINITY Series points.