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Engines & Drivetrain

Tech for the 5.3L (L83), 6.2L (L86), and 4.3L V6. Tuning and 6L80 / 8L90 transmission support.


2,741 topics in this forum

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  1. New to me 2018 1500

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  2. U joints

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  3. speed limiter

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  4. Free Exhaust Mod!! 1 2 3 4 5

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  5. 5.3 Engine "Tick" noise

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  6. Tuners/gm tech input 1 2

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  7. REAR AXLE PLAY

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  8. nGauge by HPTuners

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  9. Resonator Delete

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