2020-2024 Silverado HD & Sierra HD

1,503 topics in this forum

1. 2020+ T1 Chevrolet/GMC HD Quick Reference Guide 1 2

   By newdude, September 7, 2019   

   • lug pattern
   • transmission
   • (and 9 more)

     Tagged with:

     • lug pattern
     • transmission
     • atf
     • torque
     • bulbs
     • oil
     • Fluid capacity
     • fluids
     • lug
     • T1hd
     • 2020hd
   • 25 replies
   • 40.8k views
   • 
   • HawkScot
   • May 6, 2023

3. 2020 HD picture Thread 1 2 3 4 37

   By CRApex, August 29, 2019   

   • Official
   • 2020 hd
   • (and 1 more)

     Tagged with:

     • Official
     • 2020 hd
     • picture
   • 552 replies
   • 196.6k views
   • 
   • Dunn
   • May 29, 2023

4. 6.6 Gas MPG 1 2 3 4 8

   By brendon444, September 8, 2019
   • 109 replies
   • 146k views
   • 
   • curver900
   • June 2, 2020

5. Upfitter switches 1 2 3 4 10

   By Truckchauffeur, December 13, 2019
   • 146 replies
   • 129.6k views
   • 
   • Robo9831
   • February 27, 2022

6. Auxiliary Accessory Trailer Camera 1 2 3 4 12

   By Scott Perkins, January 12, 2020
   • 169 replies
   • 114.7k views
   • 
   • kf9yr
   • March 18, 2023

7. Inventory and ordering lead times 1 2 3 4 32

   By Rozz522, January 25, 2021
   • 470 replies
   • 90.7k views
   • 
   • hotairgypsy
   • June 19, 2022

8. Drivability of 6.6L gas 2500 vs 6.2L 1500 1 2 3 4 6

   By RE1, September 1, 2019
   • 83 replies
   • 90.5k views
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   • Cowpie
   • September 21, 2019

9. 2024 HD orders / status 1 2 3 4 47

   By Agargano98, April 5, 2023
   • 698 replies
   • 87.2k views
   • 
   • 64BAwagon
   • Tuesday at 12:34 PM

10. 2020 TPMS/trailer cameras 1 2 3 4 18

    By sdelam, July 12, 2019
    • 258 replies
    • 74.8k views
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    • kf9yr
    • August 3, 2020

11. What does “Off-road mode do?”

    By Limelight, February 28, 2020
    • 3 replies
    • 68.5k views
    • 
    • ajcain79
    • February 29, 2020

12. What Triggers "Check Trailer Wiring" DIC Message 1 2 3

    By Wxman, April 1, 2021
    • 35 replies
    • 66.5k views
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    • Zot W
    • November 10, 2023

13. Factory 5th wheel prep 1 2 3 4 10

    By powerhaulic, July 15, 2019
    • 143 replies
    • 65.3k views
    • 
    • BB&Chiveon
    • May 12, 2020

14. Biggest tire size on stock 18' Rim? 1 2

    By Sniperdan, April 1, 2020
    • 16 replies
    • 63.9k views
    • 
    • Buck Isaac
    • November 27, 2020

15. The Inevitable Comparison: GM 6.6 vs. Ford 7.3 1 2 3 4 9

    By C/K Man, February 7, 2019
    • 120 replies
    • 62.1k views
    • 
    • greatmizzou
    • June 26, 2020

16. 295/65R20 1 2 3

    By bharris515, November 7, 2019
    • 30 replies
    • 61.6k views
    • 
    • BigKahuna
    • September 20, 2020

17. 6.6 gas 1 2 3 4 9

    By gearheadesw, January 26, 2019
    • 132 replies
    • 56k views
    • 
    • MaverickZ71
    • June 25, 2019

18. Fuel mileage on 6.6 duramax & 6.6 gas! 1 2

    By Fastrac, October 4, 2020
    • 17 replies
    • 51.1k views
    • 
    • clk7711
    • October 27, 2020

19. GMC marker lights 1 2 3

    By Bboozer, August 25, 2019
    • 34 replies
    • 49.4k views
    • 
    • ShotgunZ71
    • November 3, 2021

20. 6 speed or 10 speed Allison. Which do you prefer? 1 2

    By Gray, December 29, 2019
    • 18 replies
    • 48.9k views
    • 
    • Kjduvall
    • June 21, 2022

21. Locking Gas Door? 1 2

    By BigEdB, April 10, 2019   

    • gas cap
    • fuel door lock
    • (and 1 more)

      Tagged with:

      • gas cap
      • fuel door lock
      • aftermarket fuel door lock
    • 20 replies
    • 45.1k views
    • 
    • Capt Bob
    • Tuesday at 10:24 PM

22. First 500 miles duramax break-in opinions? 1 2 3 4

    By FirstAscent, March 16, 2020
    • 47 replies
    • 43.8k views
    • 
    • FirstAscent
    • March 18, 2020

23. Check Engine Air Filter System Message

    By Rob57, December 10, 2020   

    • 2020hd
    • air intake
    • (and 2 more)

      Tagged with:

      • 2020hd
      • air intake
      • troubleshooting
      • at4
    • 8 replies
    • 42.5k views
    • 
    • gemarsh
    • July 14, 2022

24. 2500 HD - 10,650 lbs. GVWR? 1 2 3 4 5

    By tom18287, September 15, 2019
    • 74 replies
    • 41.7k views
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    • nards444
    • May 23, 2022

25. 2024 Silverado 2500 HD with the 6.6 Gas (L8T) Engine 1 2 3 4 5

    By ChrisG-2019, March 19, 2023
    • 65 replies
    • 41.4k views
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    • 9thShodan
    • December 25, 2023

26. Heavy Duty front spring package??? 1 2

    By Norman Neufeld, December 20, 2019
    • 26 replies
    • 40k views
    • 
    • GMC4Zee
    • April 21, 2021