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CONCORD, N.C. -- There are many individuals who contribute to success of the No. 9 team. In Hendrick Motorsports’ new series “Behind the 9,” crew chief Alan Gustafson talks with the individuals who bring talent and skill to the team behind the No. 9 Chevrolet Camaro ZL1 1LE.

In this week's segment, Gustafson sits down with tire specialist Mason Jennings, who makes sure all the tires for the No. 9 machine are in perfect condition and up to NASCAR's standards.

Check out the video above to hear Jennings talking about the best tacos in the country, his love of biking with his family and more.