Chastain’s Chip Ganassi Racing team was penalized after NASCAR found an issue with the team’s auro ducts. NASCAR cited the team for: Cup Rule Book 20.4.2.d: For NA18D Events, the approved CAD files are the files included below in addition to the approved OEM CAD files. Body components must also conform to the nominal size, drawing number, and part number as outlined in: Table 20.4.2.d NA18D Events. Aero Ducts.
NASCAR ejects Cup crew chief for inspection violation Cup Rule Book 20.4.4.a: For NA18D Events, aero duct openings must conform to the CAD files: Chevrolet Aero Duct Hole Pattern.
Source nascar.nbcsports.com On Saturday, Chastain had his third-place finish in the Camping World Truck Series race at Texas nullified when NASCAR disqualified his Niece Motorsports truck for an issue with the throttle body.
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