BROOKLYN, MI - AUGUST 26: Austin Wayne Self, driver of the #22 AM Technical Solutions Toyota, climbs into his truck during practice for the NASCAR Camping World Truck Series Careers for Veterans 200 at Michigan International Speedway on August 26, 2016 in Brooklyn, Michigan. (Photo by Robert Laberge/Getty Images)

BROOKLYN, MI - AUGUST 26: Greg Biffle, driver of the #16 Roush Performance Ford, during practice for the NASCAR Sprint Cup Series Pure Michigan 400 at Michigan International Speedway on August 26, 2016 in Brooklyn, Michigan. (Photo by Matt Sullivan/Getty Images)

BROOKLYN, MI - AUGUST 26: Greg Biffle, driver of the #16 Roush Performance Ford, during practice for the NASCAR Sprint Cup Series Pure Michigan 400 at Michigan International Speedway on August 26, 2016 in Brooklyn, Michigan. (Photo by Matt Sullivan/Getty Images)

BROOKLYN, MI - AUGUST 26: Austin Dillon, driver of the #3 Cheerios Chevrolet, speaks to the media during practice for the NASCAR Sprint Cup Series Pure Michigan 400 at Michigan International Speedway on August 26, 2016 in Brooklyn, Michigan. (Photo by Matt Sullivan/Getty Images)

BROOKLYN, MI - AUGUST 26: Austin Dillon, driver of the #3 Cheerios Chevrolet, speaks to the media during practice for the NASCAR Sprint Cup Series Pure Michigan 400 at Michigan International Speedway on August 26, 2016 in Brooklyn, Michigan. (Photo by Matt Sullivan/Getty Images)

BROOKLYN, MI - AUGUST 26: Greg Biffle, driver of the #16 Roush Performance Ford, during practice for the NASCAR Sprint Cup Series Pure Michigan 400 at Michigan International Speedway on August 26, 2016 in Brooklyn, Michigan. (Photo by Matt Sullivan/Getty Images)

BROOKLYN, MI - AUGUST 26: Austin Dillon, driver of the #3 Cheerios Chevrolet, speaks to the media during practice for the NASCAR Sprint Cup Series Pure Michigan 400 at Michigan International Speedway on August 26, 2016 in Brooklyn, Michigan. (Photo by Matt Sullivan/Getty Images)

BROOKLYN, MI - AUGUST 26: Austin Dillon, driver of the #3 Cheerios Chevrolet, speaks to the media during practice for the NASCAR Sprint Cup Series Pure Michigan 400 at Michigan International Speedway on August 26, 2016 in Brooklyn, Michigan. (Photo by Matt Sullivan/Getty Images)