March 1, 2011 Service bulletin

Ford: 2011 F150 raptor

Ford technical service bulletin AS-21779 for 2011 Ford F-150.

Bulletin number: AS-21779
Component: Power train: driveline: driveshaft
Summary: Ford: 2011 f150 raptor. When accelerating from or bringing to a stop there may be excessive clunk or a chirp/slip/bump condition from the driveshaft. Rm

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