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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 won't rev over 4k rpm

    By Robert morales,
    • 7 replies
    • 4.8k views

  2. 2012 GMC Sierra Denali AWD vibration

    By [email protected],
    • 0 replies
    • 595 views

  3. No fuel pressure regulator??

    By Kingsilver2217,
    • 9 replies
    • 37k views

  4. Engine swap 1 2

    By emtnm,
    • 17 replies
    • 1.8k views

  5. AFTERMARKET HEADLIGHT LENSES 2001 GMC 2500HD

    By toored,
    • 6 replies
    • 2.7k views

  6. Tow/haul Not Working 1 2 3

    By ss502gmc,
    • 34 replies
    • 109.5k views

  7. Need to Jump out clutch position switch on '02 3500

    By Gmc9305,
    • 1 reply
    • 668 views

  8. 03 Avalanche Right Blinker

    By MoHobbs,
    • 0 replies
    • 534 views

  9. Exterior windshield sun visor

    By Danny3702,
    • 2 replies
    • 3.6k views

  10. 2004 GMC Sierra 2500HD 6.0 starts then dies immediately

    By Brooklyn,
    • 10 replies
    • 16.1k views

  11. Cooling system access

    By AugustF15,
    • 4 replies
    • 892 views

  12. Coolant Capacity in 2005 Sierra HD 6.0 V8

    By AugustF15,
    • 2 replies
    • 25.5k views

  13. 6.0 to 4.3 swap

    By Gmc truck,
    • 3 replies
    • 735 views

  14. 2012 1500 with 2" level kit

    By Jonathan Foster,
    • 0 replies
    • 598 views

  15. Location of G203 in a 03 Silverado

    By Joseph Booker,
    • 1 reply
    • 4.7k views

  16. 2003 sierra 2500HD 6.0

    By rebel,
    • 0 replies
    • 759 views

  17. hvac blend doors dual climate control

    By JustinRaney,
    • 2 replies
    • 930 views

  18. Metal in rear end.

    By Jae Mil,
    • 3 replies
    • 3.2k views

  19. 2008 gmc 2500 reduce engine power

    By Wes1978,   
    • 2 replies
    • 2.1k views

  20. Truck is sputtering when shifting

    By alycat87,
    • 2 replies
    • 1.1k views

  21. Driver's headlight on/off by itself?

    By sdeeter19555,
    • 9 replies
    • 4.4k views

  22. 2007 2500 hd TCM location 1 2

    By poreda,
    • 16 replies
    • 58.7k views

  23. 2007 Gmc 2500 Bed swap

    By Csaunders34,
    • 4 replies
    • 6.5k views

  24. 2011 3500hd low coolant message

    By Datoelectric,
    • 4 replies
    • 3.1k views

  25. 2008 GMC Sierra 3500 Duramax Crewcab Dually GVWR

    By tobinstetson,
    • 0 replies
    • 935 views
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