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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.

    1.8k
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14,431 topics in this forum

  1. 1500HD Grille Guard

    By Adrian17,
    • 4 replies
    • 579 views

  2. 2001 chevy 2500 6.0 rough running and no power on acceleration

    By ian h,
    • 5 replies
    • 1.1k views

  3. Rubber body mounts

    By Steve-Maine,
    • 1 reply
    • 537 views

  4. NV4500 Rattle/Grinding Noise

    By Coop8202,   
    • 1 reply
    • 839 views

  5. 2009 Sierra 2500HD Auto lock 1 2

    By Jason Norris,
    • 17 replies
    • 3.6k views

  6. Interior swap 1 2 3 4 6

    By 08gmc17,
    • 84 replies
    • 219.3k views

  7. body bushings rubber or red plastic

    By Steve-Maine,
    • 2 replies
    • 527 views

  8. 06 extended cab right rear door handle

    By Steve-Maine,
    • 4 replies
    • 751 views

  9. 2007 Silverado 3500 Classic 4WD, 4 Door, 8' Bed (RPO - HVY, Z85, SRW) - Front suspension rebuild - Replacement spindles are too small.

    By jeffjackson,
    • 6 replies
    • 701 views

  10. 2011 GMC Sierra 2500 hd P0325 code

    By chris12385,
    • 1 reply
    • 697 views

  11. 2008 3500HD dual tank issue

    By Jeepfreak81,
    • 1 reply
    • 553 views

  12. 05 TO 03 ENGINE SWAP EMISSIONS QUESTION

    By Eddd,
    • 14 replies
    • 1.2k views

  13. Oil cooler lines assembly failure

    By Donald Steiner,
    • 1 reply
    • 641 views

  14. Transmission temperature 4l60e

    By Robby Shutts,
    • 11 replies
    • 1.5k views

  15. AC help! Running out of diagnostic ideas

    By Cofferson,
    • 1 reply
    • 774 views

  16. Review Wanted - Turtleworks Engineering NOCO GCP Series Plug Bracket for 2011-2014 Chevy Silverado 2500HD/3500HD Trucks

    By Turtleworks Engineering,
    • 2 replies
    • 1.4k views

  17. Multiple codes intermittent limp mode

    By Jason Norris,
    • 4 replies
    • 1.6k views

  18. Tailgate Band Emblem

    By touretteboy,
    • 3 replies
    • 1.2k views

  19. P0300 Missfire at my whits end

    By Griffdawg6969,
    • 7 replies
    • 1.5k views

  20. Miss fire only when going uphill on highway

    By Brayden1999,
    • 4 replies
    • 1.2k views

  21. Attempted theft. Key won’t turn back

    By Brianna C,
    • 3 replies
    • 1.2k views

  22. Location of blend door actuator

    By richard wysong,
    • 4 replies
    • 3.1k views

  23. Is there an idle-up mode on a 2007.5 6.0 3500HD?

    By atikovi,
    • 1 reply
    • 811 views

  24. Turning off Automatic headlights 1 2

    By Zimmski_Bud,
    • 17 replies
    • 15.7k views

  25. Brakes

    By sdeeter19555,
    • 2 replies
    • 1.5k views

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