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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. Filter Intervals

    By 07BlueSierra,
    • 1 reply
    • 954 views

  2. JoshA

    By JoshA,   
    • 2 replies
    • 799 views

  3. Sirius/XM Module?

    By L86 All Terrain,
    • 1 reply
    • 1.3k views

  4. No HID's on HD's? 1 2

    By mistermcgoo,
    • 28 replies
    • 5k views

  5. Couple of 4wd Questions 1 2

    By 91 Shortbed Chevy,
    • 16 replies
    • 2.4k views

  6. can bus or non can bus

    By 94yj,
    • 7 replies
    • 3.8k views

  7. Wireless charging decal removal

    By dave_clt,
    • 7 replies
    • 4.2k views

  8. RECON TAIL LIGHTS FOR SALE

    By jandersendo,
    • 1 reply
    • 1.1k views

  9. 17 Duramax oil 1 2

    By Crowsie14,
    • 20 replies
    • 89.5k views

  10. 2016 2500 Stock z71 midnight edition

    By Chevyguy2019,
    • 0 replies
    • 761 views

  11. 6.0 stock exhaust system (muffler) 1 2

    By cdh027,
    • 20 replies
    • 16.8k views

  12. Alternator issues?

    By cdh027,
    • 9 replies
    • 48.9k views

  13. Anyone else get their rear window defrost recall letter? 1 2 3

    By SierraHD17,
    • 33 replies
    • 4.3k views

  14. Backup camera monitor at night. 1 2 3 4 5

    By riverbound51,
    • 61 replies
    • 21.8k views

  15. Is this something to worry about?

    By Bhurt,
    • 0 replies
    • 768 views

  16. tranny pan

    By chainslack,
    • 0 replies
    • 569 views

  17. 5TH WHEEL TOWING

    By RACERX4772,   
    • 4 replies
    • 3k views

  18. Overloaded 3/4 ton discussion

    By cmysstailights,
    • 6 replies
    • 2.1k views

  19. Shimmy shake? 2015 denali 2500

    By greatmizzou,
    • 5 replies
    • 989 views

  20. Leaky antenna on roof 1 2

    By Mike Barber,
    • 16 replies
    • 24.2k views
    • Coe
    • Coe

  21. Installing a drain valve in the stock transmission pan

    By AJE,
    • 6 replies
    • 1.6k views
    • AJE
    • AJE

  22. Where is the factory TRAILER BRAKE CONTROLLER located??? 1 2 3

    By trx680,
    • 37 replies
    • 88.2k views

  23. 2019 Silverado 2500HD Cabin Smoke/Smell

    By Butcher2,
    • 4 replies
    • 2.6k views

  24. 2016 Headrest

    By ThreeQuarterFun,
    • 10 replies
    • 15.9k views

  25. Gear swap 4:10 to 4:56

    By cmysstailights,
    • 11 replies
    • 9.9k views
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