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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

1,789 topics in this forum

  1. Who has "upgraded" from a 1500 gas to a 2500 Duramax? 1 2 3

    By FirstAscent,
    • 42 replies
    • 11.5k views

  2. 2022 2500HD LT DIC audio menu

    By TonyTan,
    • 7 replies
    • 3.2k views

  3. Order accepted

    By Cheekster96,
    • 4 replies
    • 2.1k views

  4. Have new VIN, is there a link to get window sticker?

    By 03 Cobra,
    • 5 replies
    • 23.6k views

  5. is X31 Package on 2022 GMC 2500 worth it??

    By Gabe Bunn,
    • 5 replies
    • 22k views

  6. are the HD dbl cabs bigger than 1500 dbl cabs?

    By Dunn,
    • 5 replies
    • 1.5k views

  7. 2023 HD shows its face

    By f8l vnm,
    • 5 replies
    • 3.5k views

  8. Build to Delivery Time

    By RLCC,
    • 3 replies
    • 2.2k views

  9. Fog lights

    By Eugene Sanchez,
    • 2 replies
    • 2.1k views

  10. 2020 GMC 2500 HD--Tires and Wheels--OPINIONS WANTED

    By Swafford09,
    • 8 replies
    • 1.9k views

  11. 2020 GMC Sierra 2500HD--Seat Covers w/ front seat conversion

    By Swafford09,
    • 2 replies
    • 1k views

  12. "GRAY CLOTH INTERIOR pics" Any pics of 2020 or newer GMC 2500 SLE with GRAY INTERIOR and flip down console bench seat?

    By Gabe Bunn,
    • 3 replies
    • 1.9k views

  13. Trailer TPMS Sensors Too Small - SOLVED

    By Tomato,
    • 12 replies
    • 12k views

  14. 2022 New Colors

    By Tomato,
    • 8 replies
    • 9.9k views

  15. 2021/2022 3500 Retractable Running Board height

    By Dan ODonnell,
    • 1 reply
    • 2k views

  16. New Truck Ordering

    By lsorah0001,
    • 3 replies
    • 2k views

  17. Drain plugs or access ports

    By dquest,
    • 3 replies
    • 5.3k views

  18. Tailgate dent and scratch

    By NCCaptainMorgan,
    • 4 replies
    • 6.8k views

  19. Popping leaf springs

    By D-max2020,
    • 1 reply
    • 17k views

  20. Factory 5th wheel pucks with short bed measurements, please

    By danr1707,
    • 3 replies
    • 1.2k views

  21. Payload difference between 2500 and 3500 gas 1 2

    By nick112288,
    • 22 replies
    • 7.3k views

  22. KATZKIN leather on the new body style 2500's

    By Gabe Bunn,
    • 3 replies
    • 1.7k views

  23. Ordered with Rubberized vinyl floor and came with carpet

    By dquest,
    • 3 replies
    • 1.3k views

  24. 18” rims on 2500’s with 35” tires???

    By Gabe Bunn,
    • 1 reply
    • 3k views

  25. does GMC offer the 2022 2500 SLE with leather option or is it just Katzkin? THANKS

    By Gabe Bunn,
    • 3 replies
    • 1.4k views

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