Hendrick renews crew chief contracts

We hear that Rick Hendrick has extended the contracts of crew chiefs #5-Alan Gustafson and #48-Chad Knaus. Gustafson is currently crew chief for the #5 Chevy driven by Mark Martin. The extension likely means Gustafson will be paired with Kasey Kahne when he joins the team. Knaus has guided Jimmie Johnson to the last four NASCAR championships as crew chief of the #48.(Associated Press), no length of contract or terms mentioned.