NASCAR has announced minor rule changes for the Winston Cup Goodwrench Service 400 race this weekend.
Ford Thunderbirds and Pontiac Grand Prixs will be permitted to race with airdams with 3.5" clearance and a rear spoiler height of 6.5".
Chevrolet Monte Carlos will run airdams with 4" of clearance and a rear spoilers heights of 5.75".
