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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

1,787 topics in this forum

  1. 2020 2500HD console to jump seat swap 1 2 3

    By Craig Deary,   
    • 39 replies
    • 45.4k views

  2. Improving turning radius 1 2

    By Arkangel,
    • 18 replies
    • 45.2k views

  3. Keyless Entry Keypad 1 2 3 4

    By Coolade,
    • 51 replies
    • 43.7k views

  4. Location of Gooseneck Ball

    By cdnSpinalTap,
    • 11 replies
    • 42.6k views

  5. 2020 6.6L Gasser dyno pull 1 2

    By BoilerUP,
    • 22 replies
    • 42.5k views

  6. Actual Payload 1 2 3 4

    By brclark82,
    • 50 replies
    • 42.5k views

  7. Brakes soft 1 2 3

    By nards444,
    • 32 replies
    • 42.3k views

  8. 2023 rear seat bottom removal

    By wurgs,
    • 9 replies
    • 41.5k views

  9. 2020 Silverado 2500 Paint Code location

    By Gonzalez210,
    • 4 replies
    • 41.5k views

  10. Is there a difference between the frames for a 2500 and 3500? 1 2 3

    By Jettech1,
    • 43 replies
    • 40.8k views

  11. Rear Under Seat Storage 1 2

    By bigman32hockey,
    • 16 replies
    • 40.7k views

  12. 2021 Silverado 2500 LT Front License Plate Bracket Removal??

    By ArkChevy,
    • 13 replies
    • 40.4k views

  13. oem wheels with larger tire pic request

    By Sonders,
    • 12 replies
    • 40.2k views

  14. 2020 HD Ordering Updates, 2019 HD Production End Dates 1 2 3 4 10

    By newdude,   
    • 141 replies
    • 40.1k views

  15. Towing with 37’s

    By GLMJR,
    • 7 replies
    • 39.9k views

  16. New Code U062F - Unassigned

    By Chrisw253,
    • 5 replies
    • 39.6k views

  17. Aluminum?

    By C/K Man,
    • 14 replies
    • 39.4k views

  18. Does anybody else hate their seat? 1 2 3 4 5

    By edgexcsp,
    • 62 replies
    • 39.2k views

  19. AT4 vs Denali 1 2 3

    By brclark82,
    • 39 replies
    • 38.7k views

  20. You guys think 2022 model 6.6 GAS will get the 10A? 1 2 3 4

    By f8l vnm,
    • 52 replies
    • 38.2k views

  21. Truck shopping. Ram 2500;gas 6.4 vs Chevy 2500 1 2 3 4

    By Akwagon,
    • 48 replies
    • 38.1k views

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

    By maximumspeed,   
    • 19 replies
    • 37.9k views

  23. 295/65/20

    By CFRED70,
    • 14 replies
    • 37.7k views

  24. 5th wheel puck system

    By greatmizzou,
    • 10 replies
    • 37.7k views

  25. Illinois: Is a "D" license plate required?

    By Cheef16,
    • 6 replies
    • 37.5k views
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