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  1. thedieselpage.com
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    2. Information Resource for the General Motors 6.2L/6.5L & Duramax Light-Truck Diesel Engines
    The Diesel Page, information resource and discussion forum for the 6.2, 6.5 and Duramax diesel engines.

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    3. MaximumDiesel.com for the Duramax 6600 (6.6L) GM Chevrolet and GMC diesel engines.
    Maximum Diesel, information resource for the Duramax 6600 diesel engines and GM trucks.

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