Richard Petty | Greg Erwin to serve as crew chief

Former Roush Fenway Racing crew chief Greg Erwin, the crew chief for driver Greg Biffle, will join Richard Petty Motorsports and driver A.J. Allmendinger, effective immediately. Mike Shiplett has been working as Allmendinger's crew chief.

2011-07-18 13:02:41 | Source: FOXSports.com

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