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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
    posts

14,431 topics in this forum

  1. Cabin filter for 06 GMC 2500HD

    By Steve-Maine,
    • 4 replies
    • 6.1k views

  2. 2000 Chevrolet Silverado K2500 LS GMT800

    By MacAttack00,
    • 0 replies
    • 1.2k views

  3. 2011 duramax front driver side caliper sticking

    By bobbyb11,
    • 4 replies
    • 1.7k views

  4. 2006 2500HD rubber body mounts

    By Steve-Maine,
    • 1 reply
    • 746 views

  5. 2006 Sierra 2500HD 6.0L No Crank

    By JohnDeereJoe,
    • 2 replies
    • 1.6k views

  6. 5.3L engine swap

    By TGW63,
    • 1 reply
    • 1.2k views

  7. Torque converter keeps failing, need advice

    By Nsjenner,
    • 7 replies
    • 2.6k views

  8. Dual Exhaust for the 6.0 or not?

    By Colossus,
    • 5 replies
    • 2.2k views

  9. Dually bed swap

    By Dantz,
    • 6 replies
    • 8.7k views

  10. 2002 2500hd Gear Indicator not showing correct gear/ slow to move

    By Brendan Corr,
    • 6 replies
    • 15.3k views

  11. 2003 chevy 2500hd grinding noise front end

    By jakebe,   
    • 7 replies
    • 2.9k views

  12. Lifter tick... 1 2

    By sdeeter19555,
    • 26 replies
    • 26.7k views

  13. AC and heating problems

    By Laurence,   
    • 9 replies
    • 2k views

  14. Metal front plate bracket

    By Steve-Maine,
    • 1 reply
    • 664 views

  15. Driver Door Swap

    By Brandon O,
    • 0 replies
    • 685 views

  16. Adding a second horn

    By sdeeter19555,
    • 12 replies
    • 18.3k views

  17. 2008 Silverado add traction control button

    By Jack1121,
    • 3 replies
    • 15.1k views

  18. I need a stock VIN for a 2003 Chevy or GMC: K2500 or K3500, 8.1L manual transmission (to obtain a tune file)

    By SinisterZ71,
    • 4 replies
    • 1.4k views

  19. utility bed swap

    By ed hartert,
    • 2 replies
    • 1.4k views

  20. 2006 2500hd 6.0 no spark

    By Otisdog,
    • 2 replies
    • 3.5k views

  21. 471k miles, low compression on 3 cylinders, low oil psi about 6 months ago

    By Robs05hd,
    • 5 replies
    • 1.7k views

  22. O4 Silverado power windows/ locks

    By richard wysong,
    • 5 replies
    • 1.2k views

  23. Readable data

    By Nevada Justus,
    • 1 reply
    • 625 views

  24. 1500hd rear axle housing and differential cover

    By Citro6.0,
    • 3 replies
    • 4.9k views

  25. Old and new Alternator quits charging and on restart will begin charging again for a short while.

    By Tim White 1965,
    • 6 replies
    • 3.3k views
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