2020+ Silverado HD & Sierra HD

1,068 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
   • 23 replies
   • 22.7k views
   • 
   • redwngr
   • March 20

3. First drive of Big Red

   By Cheekster96, 9 hours ago
   • 1 reply
   • 86 views
   • 
   • sheath
   • 8 hours ago

4. Flat Tow

   By Weedguy, 16 hours ago
   • 8 replies
   • 125 views
   • 
   • Weedguy
   • 12 hours ago

5. Trailer Camera

   By marpel, May 12
   • 4 replies
   • 293 views
   • 
   • marpel
   • Yesterday at 12:51 AM

6. Check this out!! 1 2

   By Cheekster96, Thursday at 03:31 PM
   • 15 replies
   • 491 views
   • 
   • nards444
   • Saturday at 01:18 PM

7. Best reason to order a Sunroof 1 2

   By sheath, Tuesday at 09:40 PM
   • 22 replies
   • 620 views
   • 
   • sheath
   • Friday at 04:01 PM

8. Trailer Brake Controller

   By DBailey, Wednesday at 09:13 PM
   • 2 replies
   • 151 views
   • 
   • DBailey
   • Thursday at 09:11 PM

9. Buying tips 2500 1 2 3

   By Hoginedgewood, May 15
   • 31 replies
   • 1.2k views
   • 
   • Another JR
   • Thursday at 02:47 PM

10. Later Retrofit

    By Cheekster96, Tuesday at 06:50 PM
    • 5 replies
    • 269 views
    • 
    • elcamino
    • Wednesday at 01:27 PM

11. Check Engine Air Filter System Message

    By Rob57, December 10, 2020   

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

      Tagged with:

      • 2020hd
      • air intake
      • troubleshooting
      • at4
    • 4 replies
    • 18.4k views
    • 
    • AlexTrailBoss
    • Wednesday at 05:45 AM

12. 2500 HD - 10,650 lbs. GVWR? 1 2 3 4 5

    By tom18287, September 15, 2019
    • 73 replies
    • 23.6k views
    • 
    • Another JR
    • Wednesday at 03:17 AM

13. Inventory and ordering lead times 1 2 3 4 30

    By Rozz522, January 25, 2021
    • 445 replies
    • 73.8k views
    • 
    • nards444
    • Tuesday at 06:54 PM

14. Stock 17 to “stock” 20 calibrations?

    By mandrewbot3k, Tuesday at 02:25 PM
    • 4 replies
    • 188 views
    • 
    • newdude
    • Tuesday at 05:35 PM

15. DELAYED....again 1 2 3 4 5

    By Cheekster96, March 10
    • 72 replies
    • 5.4k views
    • 
    • nards444
    • May 16

16. 2020 Duramax part “back order “ dilemma

    By burnerET, January 4
    • 9 replies
    • 1.5k views
    • 
    • nards444
    • May 16

17. Trailer Brake Controller or P3

    By mandrewbot3k, May 6
    • 11 replies
    • 427 views
    • 
    • nards444
    • May 16

18. Hood air induction

    By grant400, May 16
    • 3 replies
    • 273 views
    • 
    • pokismoki
    • May 16

19. '22 3500HD Silverado LT CC/SB L8T First long trip drive impression 1 2 3

    By sheath, March 3
    • 32 replies
    • 3.1k views
    • 
    • nards444
    • May 15

20. Clip/Slip-on tow mirrors

    By marpel, May 12
    • 5 replies
    • 272 views
    • 
    • marpel
    • May 15

21. '22 3500HD Silverado LT CC/SB L8T First long 5th wheel travel trailer tow

    By sheath, April 5
    • 14 replies
    • 1.4k views
    • 
    • sheath
    • May 13

22. Derating GVWR post purchase!

    By bigrob15876, April 29
    • 5 replies
    • 641 views
    • 
    • NWStever
    • May 13

23. 1st big tow

    By littleal, May 8
    • 6 replies
    • 512 views
    • 
    • littleal
    • May 12

24. ERROR | Brake Gain Not Recalled 1 2

    By Scott Hatten, July 22, 2020
    • 18 replies
    • 6.6k views
    • 
    • sheath
    • May 12

25. 2020 GMC AT4 Diesel Brakes lock up on their own. Extremely Dangerous!!!

    By joeidaho, June 7, 2021
    • 14 replies
    • 2.9k views
    • 
    • Another JR
    • May 12

26. 2023 HD build

    By Cheekster96, May 10
    • 4 replies
    • 438 views
    • 
    • newdude
    • May 10