Jump to content

2020-2026 Silverado HD & Sierra HD

The heavy-duty headquarters. Discussion for the 2500HD and 3500HD. Towing, payload, ordering, and daily driving.

 

 

Subforums

  1. Troubleshooting, Warranty & Recalls

    The repair shop. Diagnose emissions codes, electrical issues, Allison transmission behavior, and recall updates.

    8.7k
    posts

  2. Modifications & Accessories

    Bumper replacements, 5th wheel hitches, auxiliary lighting, and suspension upgrades for your workhorse.

    10.9k
    posts

  3. 6.6L Duramax Diesel (L5P)

    The torque monster. Tuning, maintenance, and exhaust discussion for the L5P Duramax and 10-speed Allison transmission.

    2.2k
    posts

  4. 6.6L Gas V8 (L8T)

    The iron-block workhorse. Tech and reliability discussion for the 6.6L L8T V8 and the 6-speed / 10-speed heavy-duty transmissions.

    5.6k
    posts

1,789 topics in this forum

  1. 2021 HD Changes 1 2

    By C/K Man,
    • 20 replies
    • 6.9k views

  2. Flint Plant 2020 Silverado Reveal Event 1 2

    By ApertureX,   
    • 20 replies
    • 4.3k views

  3. Can you add Nav to a 2023 2500HD LT w/o Factory Nav? 1 2

    By Ken Rackliff,
    • 20 replies
    • 9.3k views

  4. 2500 vs 3500 torque limiting? 1 2

    By H1ghlndr,
    • 20 replies
    • 20.5k views

  5. Front Suspension & Frame compared to Ford 1 2

    By Hendrickson360,
    • 20 replies
    • 11.4k views

  6. 2022 Silverado 2500HD 6.6 Gas Payload (CC SB) 1 2

    By Collin McCullick,   
    • 20 replies
    • 20.3k views

  7. Gamble on August incentives? 1 2

    By Pastusak.t,
    • 19 replies
    • 3.6k views

  8. 2024 3500 DRW - Michelin Primacy tires 1 2

    By sstoner911,
    • 19 replies
    • 6.7k views

  9. TPMS Relearn Tool 1 2

    By marpel,
    • 19 replies
    • 35.5k views

  10. Dented my tailgate. Decided to pound it out myself. 1 2

    By Pryme,
    • 19 replies
    • 1.4k views

  11. 2500HD vs 3500HD 1 2

    By Jason Hewitt,
    • 19 replies
    • 4.6k views

  12. 2020 duramax putting me in reduced power mode! 1 2

    By BBE,
    • 19 replies
    • 17.6k views

  13. Used 2024 Sierra 2500HD AT4 1 2

    By tonto340,
    • 19 replies
    • 6k views

  14. Educator discount 1 2

    By Z71RAD88,
    • 19 replies
    • 2.5k views

  15. Dash panel removal 1 2

    By rjgvt,
    • 19 replies
    • 22.1k views

  16. 2020 L5P 1 2

    By loganck97,
    • 19 replies
    • 6.7k views

  17. Getting into the engine bay issues 1 2

    By greatmizzou,
    • 19 replies
    • 2.6k views

  18. Stock 17 to “stock” 20 calibrations? 1 2

    By mandrewbot3k,
    • 19 replies
    • 2.1k views

  19. Brakes Squealing while going slow through drive through 1 2

    By maximumspeed,   
    • 19 replies
    • 37.9k views

  20. Rumor Has It 1 2

    By littleal,
    • 19 replies
    • 3.1k views

  21. GMC 2500 and 3500 bumper badges 1 2

    By Sam Avaiusini,
    • 19 replies
    • 5.9k views

  22. Extended warranty 1 2

    By sno1,
    • 19 replies
    • 16.9k views

  23. Advice on ordering 3500HD that will be a flatbed 1 2

    By mobilelists,
    • 19 replies
    • 12.4k views

  24. Is this a new technique for criminals to gain access to interior of new trucks? 1 2

    By tonto340,
    • 19 replies
    • 3.6k views

  25. Truck programming options? 1 2

    By xETERNALx,
    • 19 replies
    • 14.5k views
×
×
  • Create New...