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2015-2019 Silverado HD & Sierra HD

Ownership help, research, and support for the K2XX generation 2015, 2016, 2017, 2018 & 2019 Silverado HD / Sierra HD. Also known as the Silverado 2500 or 3500. 

Subforums

  1. 2015-2019 Silverado & Sierra HD Troubleshooting

    A central location to report any issues or asking for help troubleshooting any problems with your 2015-2019 Chevrolet Silverado HD or GMC Sierra HD. Also recall announcements and Technical Service Bulletins (TSB)

    5.3k
    posts

  2. 2015-2019 Silverado & Sierra HD Mods

    Modifying and accessorizing your 2015-2019 Chevy Silverado 2500HD/3500HD or GMC Sierra 2500HD/3500HD.

    10.3k
    posts

  3. 6.6L (LML/L5P) & 6.0L (L96/LC8) Tech

    Technical discussion for the 2015-2016 Duramax 6.6L Turbo-Diesel V-8 (LML),  2017-2019 Duramax 6.6L Turbo-Diesel V-8 (L5P) and Vortec 6.0L V-8 (L96 / LC8) in the 2015-2019 Silverado HD and Sierra HD applications. Also includes, drivetrain, transmission, axles, differentials, and exhaust systems.

    2.8k
    posts

1,625 topics in this forum

  1. 6.0 engines

    By Ryan Digman,
    • 7 replies
    • 2.3k views

  3. Tow hitch weight

    By AbzDad,
    • 5 replies
    • 3.3k views

  4. 6.0 with 6-speed / 4.10 gear rpm

    By Sirspeedy,
    • 13 replies
    • 16.5k views

  5. How to figure out tunes on my truck?

    By Cain Pierce,
    • 0 replies
    • 854 views

  6. Smaller DEF Tank

    By Michael Petty,
    • 2 replies
    • 2k views

  7. Intermittent extreme wobble 2015 3500 duelly 1 2

    By Todd1312,
    • 26 replies
    • 28.6k views

  8. Flat Towing

    By SteveE,
    • 2 replies
    • 2.5k views

  9. just replace the def heater in a 2015 gmc 2500 duramax and codes are popping up

    By Kdub1961,
    • 2 replies
    • 1.6k views

  10. looking for the chmsl wire on a 16 2500hd

    By GlenS,
    • 7 replies
    • 21.2k views

  11. USB ports

    By Chebbyfan,
    • 0 replies
    • 1.1k views

  12. is this acurite to the real 3500HD's capacity? (i dont know because im 13 and never owned any type of road legal vehicle)

    By hotwheelsguy69,
    • 4 replies
    • 1.2k views

  13. Looking for some input on if it's worth it

    By SugeDay,
    • 3 replies
    • 1.2k views

  14. Neutral for HD transfer case 1 2

    By rocnrol,
    • 22 replies
    • 20.9k views

  15. 6.6 gas swap 1 2

    By Chebbyfan,
    • 17 replies
    • 13.2k views

  16. Wading depth

    By Phen,
    • 3 replies
    • 4.4k views

  17. Transmission fluid/filter replacement

    By Run_it,
    • 2 replies
    • 1.6k views

  18. Which is the better purchase? Silverado 1500 or 2500

    By TheSJHL,
    • 5 replies
    • 2.3k views

  19. Vin number on engine block

    By blackdog76,
    • 2 replies
    • 9k views

  20. 2019 sierra 2500hd

    By Greg Lemke,
    • 1 reply
    • 1.5k views

  21. 325/65/18 (35" x 13") on Stock 18's - Pictures Inside

    By Big Whiskey,   
    • 8 replies
    • 10.2k views

  22. What you getting 1 2

    By James Beyer,
    • 18 replies
    • 2.5k views

  23. Turning off Active Grade Braking 1 2

    By fjtort2,
    • 17 replies
    • 60.5k views

  24. 2017 HD Denali Grill blackout

    By jstafford,
    • 0 replies
    • 1k views

  25. pulling power of GAS 6.0 2500hd --- not impressed 1 2 3 4 6

    By trx680,
    • 77 replies
    • 51.6k views

  26. Tire size

    By Kenmason1123,
    • 1 reply
    • 926 views


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