NASCAR officials disqualified the Niece Motorsports No. 45 Chevrolet for a throttle-body violation discovered after Saturday’s Camping World Truck Series race at Texas Motor Speedway.

RELATED: Official results

Ross Chastain had driven the No. 45 entry to an apparent third-place finish in the SpeedyCash.com 220 at the Fort Worth, Texas, track. But post-race technical inspection revealed a violation of Section 20.6.2.13.a in the NASCAR Rule Book, which states: “The throttle body must be used as supplied by the NT1 engine supplier without modification.”

As a result of the infraction, the Niece No. 45 was dropped to last place in the 36-truck field.