"[Stewart's comments at Michigan regarding his Chase prospects] just put a little bit more fire in everybody, I guess," Grubb said. "We've been working hard all year. We've had good cars ever since the Daytona 500. We just never got the finishes we needed to get every weekend ... When those comments were made in Michigan, we all fought just a little bit harder to make sure we got 110 percent out of every person there, to make sure we're all doing the right things and moving forward. We've been trying not to look back ever since."