The RSS Racing No. 39 Chevrolet of Ryan Sieg failed Saturday’s post-race inspection at Las Vegas Motor Speedway, resulting in a disqualification after the NASCAR Xfinity Series event.
Sieg’s car did not meet the ride-height requirements after the Rhino Pro Truck Outfitters 300, the series’ regular-season finale.
The disqualification did not affect Sieg’s standing as one of the 12 drivers qualifying for the Xfinity Series Playoffs.
NASCAR officials also announced that two teams will be penalized for having a one lug nut not safely secured in a post-race check. The infractions were found on the No. 19 Joe Gibbs Racing car driven to third place by Brandon Jones and the No. 9 JR Motorsports entry of sixth-place Noah Gragson.
— NASCAR.com —