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2000-2014 Silverado HD & Sierra HD

The workhorses. Discussion for the 2500HD and 3500HD heavy-duty trucks. Covers the 2014 HD transition year.

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  1. Duramax Diesel & 8.1L Big Block

    The torque monsters. Tech for the LB7, LLY, LBZ, LMM, LML Duramax engines and the 8.1L Vortec (L18). Covers the Allison 1000 transmission.

    1.7k
    posts

14,430 topics in this forum

  1. Help needed

    By Colleen r,
    • 3 replies
    • 513 views

  2. Upgrade

    By Old School Devil,
    • 4 replies
    • 801 views

  3. Power Folding Tow Mirrors on 2013 GMC Diesel

    By Darv Richman,
    • 0 replies
    • 1.2k views

  4. 02 Sierra airbag light /odb 2 port

    By kirkfeere,
    • 1 reply
    • 605 views

  5. 04 SILVERADO BOSE RADIO WIRE DIAGRAM

    By joncdog,
    • 3 replies
    • 21.5k views

  6. Wiring 2002 GMC with power mirrors from a 2004 GMC

    By Mooseair,
    • 4 replies
    • 5.5k views

  7. Switch to match dash lights.

    By Heather Brown,
    • 0 replies
    • 477 views

  8. Front End Vibration

    By Adrian17,
    • 14 replies
    • 31.4k views

  9. Dead Battery, Aftermarket Radio, and a Whole Bunch of Problems

    By dj_bosse,
    • 2 replies
    • 879 views

  10. 2015+ running boards on a 2013

    By Jordan Quade,
    • 0 replies
    • 440 views

  11. Oil pan alignment 1/4 off on one side 03 6.0

    By cmcmanus365,
    • 9 replies
    • 9.1k views

  12. Need help! 4wheel drive not working

    By Sean Coombs,
    • 4 replies
    • 613 views
    • Dnt
    • Dnt

  13. 2004 2500 HD single light problem

    By ron szabo,
    • 0 replies
    • 405 views

  14. Rear Wheel Seal

    By sdeeter19555,
    • 0 replies
    • 456 views

  15. In cab filtr

    By MotherTrucker,
    • 12 replies
    • 1.9k views

  16. Door Rust on 2006 GMC Sierra Pickup

    By Qucet,
    • 3 replies
    • 2.1k views

  17. Coil Pack wierdness

    By andrewas87,
    • 1 reply
    • 1.5k views

  18. Pitman arm replacement

    By usa.nobody,
    • 4 replies
    • 5k views

  19. 02 Sierra 2500hd idle arms

    By kirkfeere,
    • 1 reply
    • 537 views

  20. 2001 Chevy Silverado-replacing manual folding side mirrors with power folding mirrors

    By awbooth,
    • 0 replies
    • 617 views

  21. Phone Mount for the GMT900 trucks

    By Colossus,
    • 5 replies
    • 3.9k views

  22. 305 vs 315 on pyo wheels

    By 016.0,
    • 2 replies
    • 1.8k views

  23. Air bag light

    By Steven R,
    • 5 replies
    • 559 views

  24. 4wd stopped working after I pushed auto on 2004 z71

    By Nuge44,
    • 2 replies
    • 537 views

  25. 02 Sierra 2500hd 8.1 allison

    By Welytok,
    • 1 reply
    • 586 views
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