Jeff Gordon and Jimmie Johnson have been docked 100 points each in the Nextel Cup driver standings. Their crew chiefs were both fined $100,000, suspended for six races and put on probation through the rest of the year.
It's the result of last week's violations at Infineon Raceway in Sonoma, California, where the two Hendrick Motorsports cars failed inspection on Friday.
Gordon, a four-time series champion, finished seventh in Sunday's race while defending points champ Johnson was 17th.
Gordon remains the Nextel Cup points leader after the deduction, but his martin was cut to 171 points over Denny Hamlin. Johnson dropped from third to fifth.