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2015-2019 Silverado HD, Sierra HD & Medium Duty

The heavy haulers. Discussion for the 2500HD / 3500HD and the 4500HD / 5500HD / 6500HD chassis cabs.

Subforums

  1. Modifications & Accessories

    Bumpers, towing mirrors, and suspension upgrades.

    10.3k
    posts

  2. Troubleshooting & Recalls

    Diagnose DEF heater failures, CP4 pumps, and electrical issues.

    5.5k
    posts

  3. Engines & Powertrain (Duramax & Vortec)

    Technical discussion for the 6.6L Duramax (LML / L5P) and the 6.0L Gas V8 (L96 / LC8). Covers the Allison 1000 and 6L90 transmissions.

    2.8k
    posts

1,665 topics in this forum

  1. 2015 Allison Transmission screw on type external oil filter

    By Gfurlong,
    • 8 replies
    • 5.8k views

  2. 2016 HD power steering

    By SMiller,
    • 2 replies
    • 2.9k views

  3. 2015 one ton Truck selection

    By 06_GMC,
    • 3 replies
    • 1.4k views

  4. I should have driven my 2500 Denali at night before purchasing 1 2 3

    By dysert,
    • 38 replies
    • 27.2k views

  5. need help ........LED low beam for '15 silverado LT Z71

    By soberdevil,   
    • 4 replies
    • 2.7k views

  6. 2015 High Country 2500 Build Page 1 2 3 4

    By Amiodynski,   
    • 59 replies
    • 23.1k views

  7. Line-x Bumpers

    By 2FarSouth,   
    • 4 replies
    • 11.5k views

  8. any programming mode for accessories like lights.

    By kcmusa,
    • 2 replies
    • 1.6k views

  9. More upgrades

    By mzodarg,
    • 4 replies
    • 1.9k views

  10. Banks Power Ram Air Kit 1 2

    By Amiodynski,
    • 17 replies
    • 3.7k views

  11. Tow Mirrors to "Sporty" mirrors

    By klind,
    • 11 replies
    • 8k views

  12. Mileage and gauges.

    By skav,
    • 7 replies
    • 2.5k views

  13. 6.0 vs Dmax General Performance 1 2 3 4 5

    By lion454,
    • 65 replies
    • 28.2k views

  14. Some pictures of my ride 1 2

    By hollywoodsle,
    • 15 replies
    • 4k views

  15. 2015 Silverado 2500HD chrome grille insert

    By Low15,
    • 0 replies
    • 1.5k views

  16. I love it when I see the Brown Truck at my house

    By mzodarg,
    • 10 replies
    • 1.9k views

  17. key fob remote to open and lock doors question for 2015 2500HD

    By cat320,
    • 2 replies
    • 1.4k views

  18. FNG to the 2500 High Country Duramax 1 2

    By mzodarg,
    • 25 replies
    • 5.9k views

  19. Gm Engine Oil - what is GM code 19293002

    By Cosmic Charlie,
    • 6 replies
    • 9.6k views

  20. First oil change

    By calgator73,
    • 8 replies
    • 5.7k views

  21. Buying 2015 2500HD in accident

    By Kraig Minner,
    • 11 replies
    • 2k views

  22. New Denali HD 1 2

    By rgarza2006,
    • 26 replies
    • 4.4k views

  23. Are they changing anything on the 2016 2500HD?

    By KevH,
    • 7 replies
    • 2.6k views

  24. How is the new 6.0

    By mattymax,
    • 11 replies
    • 57.5k views

  25. Any updates for mylink coming?

    By Awells32,
    • 3 replies
    • 4.2k views

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