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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.

    5.4k
    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. new truck

    By rickit,
    • 3 replies
    • 1.1k views

  2. Onstar

    By duramaxmb,
    • 1 reply
    • 1k views
    • Dnt
    • Dnt

  3. Heated seats don't heat 1 2

    By Kesslinger,
    • 16 replies
    • 3.2k views

  4. GPS/Navigation/Bluetooth don't work

    By Turner23kc,
    • 4 replies
    • 1.9k views

  5. New 2500 owner

    By nolega,
    • 10 replies
    • 1.5k views

  6. She is complete

    By 07Serria,
    • 10 replies
    • 2k views

  7. First 2017 sold? 1 2

    By Nellyinda803,
    • 17 replies
    • 2.9k views

  8. My 2016 2500HD

    By Black_Betty,
    • 3 replies
    • 1.4k views

  9. RPO Code Updates & Questions 1 2

    By revrnd,
    • 15 replies
    • 22.4k views

  10. Traded up from 1500 to 2500 duramax

    By Greg15z71,
    • 12 replies
    • 2k views

  11. Break in for 6.0L 1 2

    By xrevx1,
    • 22 replies
    • 9.5k views

  12. 16 Digital Steering Assist - How is yours? 1 2

    By 2TrakR,
    • 17 replies
    • 13.8k views

  13. 275/65R20

    By Skeld,
    • 11 replies
    • 14.5k views

  14. Speedo recalibrate 1 2

    By cford716,
    • 16 replies
    • 21k views

  15. 2016 2500 Duramax Fuel Milage 1 2

    By Marc Russ,
    • 24 replies
    • 14.1k views

  16. Ziebart or Not???

    By puller738,
    • 12 replies
    • 6k views

  17. Power steering noise. ?

    By puller738,
    • 9 replies
    • 4.5k views

  18. Tows like a dream

    By Debra in Cali,
    • 12 replies
    • 2.3k views

  19. Dead battery after only 1.5 hours

    By chvybeatsford,
    • 4 replies
    • 1.5k views

  20. Thinking of going from 2014 1500 5.3 to 2016 2500 6.0 1 2 3

    By shreff86,
    • 38 replies
    • 6.1k views

  21. 2015 SIERRA 2500 DURAMAX PAINT PEELING 1 2

    By Sean350,   
    • 27 replies
    • 23.3k views

  22. 2016 2500 HD pinging under load

    By snorydermb,
    • 0 replies
    • 1.2k views

  23. New Shoes

    By Mark Mortenson,
    • 8 replies
    • 3.5k views

  24. Will 16" wheels fit '16 2500HD

    By wrc7732,
    • 6 replies
    • 20.3k views

  25. New truck

    By AndysZ71,
    • 7 replies
    • 1.8k views

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