Jump to content

2020-2026 Silverado HD & Sierra HD

The heavy-duty headquarters. Discussion for the 2500HD and 3500HD. Towing, payload, ordering, and daily driving.

 

 

Subforums

  1. Troubleshooting, Warranty & Recalls

    The repair shop. Diagnose emissions codes, electrical issues, Allison transmission behavior, and recall updates.

    8.7k
    posts

  2. Modifications & Accessories

    Bumper replacements, 5th wheel hitches, auxiliary lighting, and suspension upgrades for your workhorse.

    10.9k
    posts

  3. 6.6L Duramax Diesel (L5P)

    The torque monster. Tuning, maintenance, and exhaust discussion for the L5P Duramax and 10-speed Allison transmission.

    2.2k
    posts

  4. 6.6L Gas V8 (L8T)

    The iron-block workhorse. Tech and reliability discussion for the 6.6L L8T V8 and the 6-speed / 10-speed heavy-duty transmissions.

    5.6k
    posts

1,789 topics in this forum

  1. No rear cup holders in 2021 2500 LT??? 1 2

    By ArkChevy,
    • 22 replies
    • 29.6k views

  2. RetraxPROMX for 2014-2018 Sierra on 2022 Sierra - will it work?

    By jdalt9,
    • 1 reply
    • 1.3k views

  3. What size tire is everyone running on stock suspension...

    By CFRED70,
    • 14 replies
    • 17.3k views

  4. Embrace the base

    By Pryme,
    • 5 replies
    • 1.6k views

  5. Looking at trading 2020 at4 1500 for a new 2022 at4 2500

    By T_mtb,
    • 3 replies
    • 1.7k views

  6. First tank in the new truck in the books. Not bad mileage for a first tank

    By Pryme,
    • 8 replies
    • 2.3k views

  7. More problems with my 2020 GMC 3500 Duramax 1 2

    By Richard Helm,
    • 16 replies
    • 17.5k views

  8. Later Retrofit 1 2

    By Cheekster96,
    • 18 replies
    • 4.6k views

  9. 342 vs 373 Real world experience 1 2 3

    By nards444,
    • 43 replies
    • 21.3k views

  10. Box van hit my mirror in curve

    By shadow gray 2020 hd,
    • 1 reply
    • 1.2k views

  11. Z71 package - effect on ride quality, ride height, and/or towing?

    By Alfa Georgia,
    • 14 replies
    • 29.5k views

  12. After market Snow plow jumper harness

    By GratefulAZ,
    • 5 replies
    • 16.4k views

  13. initial change of front AND rear AXLE fluids (and transfer/transmissions initial flushes) 1 2

    By Mic_,
    • 17 replies
    • 3.4k views

  14. 2020 GMC 2500HD Denali Intermittent GPS/Nav Problem

    By skatville,
    • 0 replies
    • 1.9k views

  15. 2500hd Rear lift blocks

    By SKEETER1978,
    • 4 replies
    • 9.4k views

  16. 5th wheel trailer plug install 2020 Chevy 2500

    By dirtfarmer_jeff,
    • 9 replies
    • 14.3k views

  17. Emission recall

    By gerald compton,
    • 9 replies
    • 12.6k views

  18. No Grease 2020 Chevy 2500WT Duramax 1 2

    By Lightenup,
    • 26 replies
    • 17.5k views

  19. First GM truck in 25 years!

    By Pryme,
    • 7 replies
    • 1.6k views

  20. '22 3500HD Silverado LT CC/SB L8T First long 5th wheel travel trailer tow 1 2

    By sheath,
    • 25 replies
    • 7.9k views

  21. My new 2020 Chevy 2500HD thoughts/comparisons to Dodge 2500

    By dirtfarmer_jeff,
    • 3 replies
    • 4.3k views

  22. Water in hood

    By bmartin1984,
    • 13 replies
    • 8.7k views

  23. Why the difference in designs bottom of tow mirrors 2020+ HD trucks?

    By Pryme,
    • 5 replies
    • 1.8k views

  24. rear door handle entry button

    By kylant,
    • 3 replies
    • 1.2k views

  25. 2022 AT4 Gasser Review 1 2

    By nards444,
    • 20 replies
    • 8.9k views

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,791
    Total Members
    8,960
    Most Online
    d.lowrey
    Newest Member
    d.lowrey
    Joined

  • Who's Online   0 Members, 0 Anonymous, 5,212 Guests (See full list)

    • There are no registered users currently online
×
×
  • Create New...