During pre-race inspection in the NASCAR Cup Series garage, the No. 34 and 38 cars did not conform to the NASCAR rule specifications per the following rule(s):
22.214.171.124 DECK LID EXTENSION
PART DATABASE: Deck Lid Extension
.a Only NASCAR-approved deck lid extensions, listed in the NASCAR Parts Database, will be permitted.
.b The deck lid extension must conform to the following drawing: DECK LID-DECK LID ASSEMBLY A-001-00332D-14 REV. C
As a result, the crew chief for each car has been ejected, the Nos. 34 and 38 will start from the rear for tonight’s race, and further penalties may be assessed during the upcoming week per normal NASCAR procedures.
Additionally, the #5- Kyle Larson will start from the rear due to multiple inspection failures. Larson was to start from the pole.
— NASCAR —
Due to an inspection infraction, the crew chiefs of the No. 34 and No. 38 have been suspended for tonight’s race. Jason Sheets, car chief of the No. 34 will serve as crew chief for @Mc_Driver. Derrick Finley will serve as the crew chief for @anthonyalfredo.
— Front Row Motorsports (@Team_FRM) August 28, 2021
Kyle Larson says starting at the rear because of two inspection failures shouldn’t be a big deal. pic.twitter.com/ayyG9gYj98
— Bob Pockrass (@bobpockrass) August 28, 2021