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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
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14,430 topics in this forum

  1. 03 Silverado 2500hd knock sensors

    By Turtle 59,
    • 2 replies
    • 695 views

  2. 03 Silverado 2500HD low speed issues: HELP

    By scannon28,   
    • 5 replies
    • 1.7k views

  3. 03 Silverado 2500hd steering gear input shaft leak

    By grlloyd,
    • 0 replies
    • 1.4k views

  4. 03 silverado 4X4

    By Matthew austin,
    • 8 replies
    • 724 views

  5. 03 silverado 6.0 flashing CEL

    By rathay,
    • 0 replies
    • 2.7k views

  6. 03 Silverado air dams?

    By GF7PE,
    • 0 replies
    • 1.2k views

  7. 03 Silverado code scanner

    By jbegler,
    • 0 replies
    • 2k views

  8. 03 Silverado Knock Sensors

    By owenbyc,
    • 0 replies
    • 2.3k views

  9. 03 year models

    By 03 crew cab,
    • 0 replies
    • 1.2k views

  10. 03-06 6.0...what Are The Specs

    By yukon25008.1,
    • 0 replies
    • 4.4k views

  11. 03-06 cruise control

    By riverhawk,
    • 13 replies
    • 45.5k views

  12. 03' 2500 HD Gear lube???

    By Barrett66,
    • 13 replies
    • 2.9k views

  13. 03' 2500hd: Adding A Trailer Harness

    By tigers2007,
    • 0 replies
    • 1.1k views

  14. 03/06 Gm Instrument Cluster Free Off Warranty Repair 1 2

    By sonjaab,
    • 17 replies
    • 45.3k views

  15. 03HD front bumper

    By mmayo,
    • 0 replies
    • 942 views

  16. 04 & up 3500 SRW

    By nsmilligan,
    • 0 replies
    • 1.9k views

  17. 04 2500 HD Clunk

    By Seand1,
    • 0 replies
    • 994 views

  18. 04 2500hd

    By snake428,
    • 0 replies
    • 2k views

  19. 04 2500HD 6.0 Coolant Change

    By Kingfishracin,
    • 1 reply
    • 1.7k views

  20. 04 2500HD 6.0 Strange towing issues!

    By CTM,
    • 1 reply
    • 1k views

  21. 04 2500HD 6.0L low oil pressure.......

    By Hdwd,
    • 5 replies
    • 30.5k views

  22. 04 2500HD 8.1 - Can someone identify these 2 plugs near the fuse box?

    By ruggiero06,
    • 2 replies
    • 1.7k views

  23. 04 2500hd Dash Lights Dim

    By chechem1984,
    • 0 replies
    • 2.3k views

  24. 04 2500HD foggy headlight lens

    By CTM,
    • 6 replies
    • 1.9k views

  25. 04 2500hd rear blocks factory?

    By Brandon5778,
    • 3 replies
    • 15.6k views
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