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2020+ Silverado HD & Sierra HD

An all new forum to discuss topics directly related to the all new 2020 & 2021 Chevy Silverado HD & GMC Sierra HD 2500 & 3500

 

2020 Chevy Silverado HD & 2020 GMC Sierra HD

Subforums

  1. 2020 Silverado HD & Sierra HD Troubleshooting

    A central location to report any issues or asking for help troubleshooting any problems with your 2020 Chevrolet Silverado 2500 / 3500 or 2020 GMC Sierra 2500 / 3500. Also recall announcements and Technical Service Bulletins (TSB).

    2,590
    posts

  2. 2020 Silverado HD & Sierra HD Mods

    Discuss modifying and accessorizing your 2020 Chevrolet Silverado 2500 / 3500 or 2020 GMC Sierra 2500 / 3500.

    3,839
    posts

  3. 6.6L Duramax Diesel & Allison Powertrain (L5P/MGM)

    Technical powertrain discussion specifically for the 2020+ L5P Duramax Diesel Engine and 10-Speed Allison Transmission combination on the 2020 Chevrolet Silverado 2500 / 3500 or 2020 GMC Sierra 2500 / 3500

    1,140
    posts

  4. 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

    848
    posts

714 topics in this forum

  1. 2020+ T1 Chevrolet/GMC HD Quick Reference Guide 1 2

    By newdude,   
    • 17 replies
    • 11,121 views

  3. 2020 HD picture Thread 1 2 3 4 34

    By CRApex,   
    • 495 replies
    • 110,783 views

  4. 6.6 Gas MPG 1 2 3 4 8

    By brendon444,
    • 109 replies
    • 77,931 views

  5. 2020 TPMS/trailer cameras 1 2 3 4 18

    By sdelam,
    • 258 replies
    • 50,450 views

  6. Upfitter switches 1 2 3 4 10

    By Truckchauffeur,
    • 137 replies
    • 50,058 views

  7. Factory 5th wheel prep 1 2 3 4 10

    By powerhaulic,
    • 143 replies
    • 36,091 views

  8. Auxiliary Accessory Trailer Camera 1 2 3 4 7

    By Scott Perkins,
    • 95 replies
    • 31,903 views

  9. The Inevitable Comparison: GM 6.6 vs. Ford 7.3 1 2 3 4 9

    By C/K Man,
    • 120 replies
    • 30,027 views

  10. 2020 HD Ordering Updates, 2019 HD Production End Dates 1 2 3 4 10

    By newdude,   
    • 141 replies
    • 29,505 views

  11. 6.6 gas 1 2 3 4 9

    By gearheadesw,
    • 132 replies
    • 28,690 views

  12. GMC marker lights 1 2 3

    By Bboozer,
    • 30 replies
    • 25,409 views

  13. Drivability of 6.6L gas 2500 vs 6.2L 1500 1 2 3 4 6

    By RE1,
    • 83 replies
    • 19,751 views

  14. Trailer rear camera - 5th Wheels 1 2 3 4

    By es2020HD,   
    • 45 replies
    • 15,787 views

  15. AT4 vs Denali 1 2 3

    By brclark82,
    • 39 replies
    • 14,670 views

  16. 295/65R20 1 2 3

    By bharris515,
    • 30 replies
    • 13,896 views

  17. Any new news on GM retiring the 6.Dinosaur ? 1 2 3 4 6

    By f8l vnm,
    • 79 replies
    • 13,889 views

  18. What is your 2020's ACTUAL Payload? 1 2 3

    By ApertureX,   
    • 43 replies
    • 13,882 views

  19. 2020 HD MultiPro Tailgate Hitch Ball Solution 1 2 3

    By MrGraff,
    • 44 replies
    • 13,784 views

  20. does center console open or no ? 1 2

    By xidex,
    • 18 replies
    • 12,750 views

  21. 6.6L GAS for 2010HD? 1 2 3 4 6

    By redwngr,
    • 76 replies
    • 12,402 views

  22. 2020 HD Plant Production 1 2 3 4 9

    By Pate Services,
    • 131 replies
    • 12,071 views

  23. What does “Off-road mode do?”

    By Limelight,
    • 3 replies
    • 11,361 views

  24. Biggest tire size on stock 18' Rim? 1 2

    By Sniperdan,
    • 16 replies
    • 11,360 views

  25. Keyless Entry Keypad 1 2 3 4

    By Coolade,
    • 50 replies
    • 11,142 views

  26. Will a new 2500 HD fit through a 7 ft tall std garage door? 1 2

    By jd64,
    • 29 replies
    • 10,806 views


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