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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).

    2,596
    posts

  2. 2020 Silverado HD & Sierra HD Mods

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

    3,841
    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

    862
    posts

714 topics in this forum

  1. 2020 2500 max towing 1 2

    By ultrascott,
    • 25 replies
    • 2,817 views

  3. Can’t lock employee price on HDs

    By Hockeylover86,
    • 9 replies
    • 1,235 views

  4. Employee vs Supplier Pricing

    By Jimmy-Mack,
    • 3 replies
    • 792 views

  5. Oil in coolant

    By Roy and Tracy Boling,
    • 5 replies
    • 717 views

  6. Buying 2021 2500 AT4 Diesel in Canada

    By HydrogenCyanide,
    • 2 replies
    • 347 views

  7. Can you turn off auto braking or safety seat etc?

    By jeetS,
    • 10 replies
    • 677 views

  8. Real world 35x12.50 R20 answers

    By Londart2020,
    • 4 replies
    • 908 views

  9. 35/11.50R20

    By Londart2020,
    • 4 replies
    • 1,138 views

  10. GM Extended Warranty and/or Vehicle Service Contracts

    By Greg Kruse,
    • 6 replies
    • 1,465 views

  11. Overhead Console Unused Wire Plug

    By Gr8DaneOperator,   
    • 1 reply
    • 441 views

  12. When will GM raise the Torque on the Duramax ? 1 2

    By f8l vnm,
    • 29 replies
    • 2,503 views

  13. Factory Order vs Dealer Lot 1 2 3

    By D A,
    • 33 replies
    • 3,731 views

  14. Gooey frame

    By Bob 3500HD,
    • 6 replies
    • 747 views

  15. 2500 HD - 10,650 lbs. GVWR? 1 2 3 4

    By tom18287,
    • 51 replies
    • 8,190 views

  16. Extended Warranty, Protection Plan - advice

    By -MOOSE-,
    • 7 replies
    • 776 views

  17. Fender Flare retainers

    By H'sAT4,
    • 14 replies
    • 833 views

  18. 2021 Sierra 2500HD Denali Black Diamond Edition $82k

    By Vidtrix,
    • 1 reply
    • 1,364 views

  19. Anyone seen a Chev Accessory black grille?

    By magstar67,
    • 4 replies
    • 610 views

  20. AirDog, who has it?

    By Londart2020,
    • 1 reply
    • 435 views

  21. Diesel fuel additive?

    By paulny,
    • 3 replies
    • 935 views

  22. Just shock upgrade.. 1 2

    By Londart2020,
    • 20 replies
    • 2,125 views

  23. Rear Slider Leak AND broken tow mirror. Need help :)

    By D A,
    • 2 replies
    • 539 views

  24. Adjusting torsion bars for snowplow

    By LSX Z28,
    • 8 replies
    • 974 views

  25. Factory Bose sub replacement

    By Leonc99,
    • 0 replies
    • 635 views

  26. Full coil over lift for 2500 AT4?

    By YourSpecialist,
    • 4 replies
    • 609 views


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