| Monster Energy NASCAR Cup Series | |||||
| Infraction Date | Track | Team | Level | Infraction | Penalty |
| 3/11/2018 (post-race inspection) | ISM Raceway | No. 9 | L1 | Section 20.14.2 Rear Suspension I-4 Truck Trailing Arm Spacers/Pinion Angle Shims e. Notes: 6. Truck trailing arm spacer / pinion angle shim mating surfaces must be planar and must be in complete contact with corresponding mating surfaces at all points and at all times. Rule 12.5.2.6.2(c) applied to race finish as a post-race L1 infraction. |
Crew chief (Alan Gustafson) has been fined $50,000. Car chief (Josh Kirk) has been suspended for the next two Monster Energy NASCAR Cup Series Championship Points Events. Team has been assessed with the loss of 25 owner points and 25 driver points. |
| 3/11/2018 (post-race inspection) | ISM Raceway | No. 11 | Safety | Sections 10.9.10.4: Tires and Wheels Note: Lug nut(s) not properly installed. |
Crew chief (Mike Wheeler) has been fined $10,000. |
| 3/11/2018 (post-race inspection) | ISM Raceway | No. 12 | Safety | Sections 10.9.10.4: Tires and Wheels Note: Lug nut(s) not properly installed. |
Crew chief (Jeremy Bullins) has been fined $10,000. |
| 3/11/2018 (post-race inspection) | ISM Raceway | No. 17 | Safety | Sections 10.9.10.4: Tires and Wheels Note: Lug nut(s) not properly installed. |
Crew chief (Brian Pattie) has been fined $10,000. |
| 3/11/2018 (post-race inspection) | ISM Raceway | No. 22 | Safety | Sections 10.9.10.4: Tires and Wheels Note: Lug nut(s) not properly installed. |
Crew chief (Todd Gordon) has been fined $10,000. |
| 3/11/2018 (post-race inspection) | ISM Raceway | No. 78 | Safety | Sections 10.9.10.4: Tires and Wheels Note: Lug nut(s) not properly installed. |
Crew chief (Cole Pearn) has been fined $10,000. |
| NASCAR Xfinity Series | |||||
| Infraction Date | Track | Team | Level | Infraction | Penalty |
| 3/10/2018 (post-race inspection) | ISM Raceway | No. 18 | Safety | Sections 10.9.10.4: Tires and Wheels Note: Lug nut(s) not properly installed. |
Crew chief (Eric Phillips) has been fined $5,000. |
| 3/10/2018 (post-race inspection) | ISM Raceway | No. 22 | Safety | Sections 10.9.10.4: Tires and Wheels Note: Lug nut(s) not properly installed. |
Crew chief (Brian Wilson) has been fined $5,000. |
| NASCAR Penalty | |||||
| Infraction Date | Track | Team/Member | Level | Infraction | Penalty |
| 3/6/2018 | N/A | Brandon J. Lee | Behavioral (SAP) |
Section 19 | Indefinite suspension from NASCAR |
| 3/5/2018 | N/A | Wayne F. Kanter | Behavioral (SAP) |
Section 19 | Indefinite suspension from NASCAR |
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