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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


109 topics in this forum

  1. 6.6 Fuel Requirements 1 2

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  2. 2023 L8T 10 Speed 1 2 3 4 6

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  3. Add engine oil!!! 1 2 3 4 7

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  4. Who makes the axles

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