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6.6L Gas V8 & HD Transmission Powertrain (L8T/MYD)

Technical powertrain discussion specifically for the 2020+ L8T 6.6L Gas V8 engine and MYD 6-Speed HD transmission combination on the 2020 Chevrolet Silverado 2500 / 3500 or 2020 GMC Sierra 2500 / 3500

18 topics in this forum

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  1. Payload question

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  2. 6.6 Gasser 1 2 3 4 8

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  3. 93 octane gas 1 2

    • 18 replies
    • 2,794 views


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