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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. back up camera not working

    By camera,
    • 0 replies
    • 629 views

  2. Cat delete 1 2

    By sareljr,
    • 18 replies
    • 49.6k views

  3. What tire pressure should I run?

    By T0ng5,
    • 4 replies
    • 1.3k views

  4. No Shift indicator; no crank

    By Jordan Vance,   
    • 7 replies
    • 32.9k views

  5. new owner 2011 silverado 2500 6.0 question about transmission

    By Bryansl,
    • 3 replies
    • 1.2k views

  6. Gmc sierra Blower Resistor

    By E. Rdz,   
    • 1 reply
    • 7.9k views

  7. Truck won't shift into gear after sitting for a few days

    By rszimm,
    • 2 replies
    • 1.1k views

  8. 2006 GMC 2500HD cabin filter

    By Steve-Maine,
    • 3 replies
    • 1.8k views

  9. 2006 GMC 2500HD rear brake backing plate

    By Steve-Maine,
    • 3 replies
    • 2.2k views

  10. 3 groove or 4 groove pitman arm? 1 2

    By sahls01gmc,
    • 23 replies
    • 211.9k views

  11. Trying to get an idea as to what I can sell my 2500 Suburban 8.1L Whipple Supercharged vehicle for

    By grey2112,
    • 1 reply
    • 2.3k views

  12. 04 avalanche shift issue

    By HB2004,
    • 0 replies
    • 739 views

  13. 2012 Silverado reduced power issue

    By Bradley William Bumbie Babarovich,
    • 4 replies
    • 1k views

  14. 2006 2500HD Lightning Strike

    By Justjoshiny,
    • 4 replies
    • 2.3k views

  15. Shocks front and rear

    By Dollar,
    • 3 replies
    • 1.2k views

  16. 2001 2500 8.1 L. Tow/Haul mode causes MAF code

    By Albertaktm,
    • 0 replies
    • 1.2k views

  17. Plowing with a '13 2500HD 6.0L electrical charging 1 2

    By stallion81,
    • 20 replies
    • 12.5k views

  18. leaking rear axle sealing gmc sierra 3500hd single wheel

    By coo,
    • 2 replies
    • 6.3k views

  19. 08 Silverado 2500 won’t start....

    By Trish Bodine,
    • 2 replies
    • 744 views

  20. Miss fire 0300 random

    By Papaw chevy,
    • 1 reply
    • 757 views

  21. New Headunit install has a static noise

    By Shae,
    • 4 replies
    • 3.7k views

  22. New Headunit install has a static noise

    By Shae,
    • 0 replies
    • 2.3k views

  23. Now won’t start

    By Karen Dooper Winstead Peyton,
    • 6 replies
    • 1.1k views

  24. 2011 6.0 oil pressure switch screen missing

    By BDurhamOhio,
    • 3 replies
    • 16.1k views

  25. Tailgate Latch Rod Problems

    By tripledistilledian,   
    • 0 replies
    • 1.9k views

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