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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. Anyone in the E Tex/Nw Louisiana/Arkansas area want to trade wheels?

    By No F-bdy Bs,
    • 5 replies
    • 472 views

  2. Free fender tie back

    By Cracksrubi,
    • 2 replies
    • 469 views

  3. Fuse Size

    By AndrewF,
    • 1 reply
    • 468 views

  4. Chevy Website

    By TrailBoss1,
    • 0 replies
    • 465 views

  5. 2021 GMC 2500 tail lights

    By Megs333,
    • 4 replies
    • 406 views

  6. Unused timed auxiliary fuse

    By Metal.Dave,
    • 5 replies
    • 395 views

  7. Exhaust brake & trailer brake lights

    By Jack Horn,
    • 4 replies
    • 349 views

  8. 2021 silverado usb is not recognized

    By lickyboomboom,
    • 0 replies
    • 341 views

  9. Cruise control notification

    By Homer1959,
    • 0 replies
    • 333 views

  10. HELP ! 2022 3500 SRW/DRW Parts Needed?

    By RadfordFarms,
    • 2 replies
    • 327 views

  11. iDash stats without the wires

    By mkirkland,
    • 1 reply
    • 315 views

  12. has anyone ever added fender flare lights on a silverado 2500

    By jramo2876,
    • 0 replies
    • 240 views
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