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I own a 2007 Sierra Classic, 2500HD, VIN 1GTHK23D57F166903. It has an audible vibration in the power train, most noticeable at the 55-65 MPH range. I'm told this is a normal characteristic of the truck. Quite frankly, I do not believe that. What is you corporate mailing address so I can send the specifics to you, in writing? Thank you.

Answers from the Automotive Experts

Donna Burmeister, Service Manager at Classic Nissan Go back to your dealer and request to road test a similar vehicle. It may be a characteristic.

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