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2000-2014 Duramax, Diesel, & Drivetrain

All GMT-800/900 diesel engine, transmission, and drivetrain specific discussion. Focusing on the 6,6L Duramax V8 & somewhat the 6.0L gas engine. Includes RPO coded engines, LB7, LLY, LMM, LMK, LML, & LGH

399 topics in this forum

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  1. P1779 code

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  2. replacement wheels

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  3. Dually Tires

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  4. Heat and Air Temperature

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  5. Bed bolt pattern

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  6. 2005 Duramax

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  7. Gas leak

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  8. fuseble link

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