For Reuitmann's #00 team, Bobby Kennedy, executive vice president of race operations, takes over as interim crew chief in place of Rodney Childers, while race mechanic Chris Hall stands in for suspended car chief Steve Channing.
For Truex Jr.'s #56 team, veteran crew chief Pat Tryson steps in for Chad Johnston as interim crew chief at Martinsville, and race mechanic Allen Mincey takes over as interim car chief in place of the suspended Tony Lunder.
At JTG Daugherty Racing, team chief race engineer Brian Burns will assume the role as crew chief for the Bobby Labonte's #47 replacing Frank Kerr, and Bob Bechstein has been named car chief replacing Raymond Fox.
All the suspended staff are expected to resume their normal positions once the penalties have been served.
The penalties are more severe than those handed down to Joe Gibbs Racing earlier in the season over modified oil pans. That's because in JGR's case the violation was not submitting the modified parts to NASCAR for explicit approval, but the oil pans did not themselves breach the rules. In this week's windscreens penalties, the modifications did breach regulations and were also made to parts that should not normally be modified by race teams during the season.