Modifications & Accessories

1,137 topics in this forum

1. Side marker lights

   By 07HD, February 12, 2024
   • 7 replies
   • 7.1k views
   • 
   • gemarsh
   • February 25, 2024

2. 2018 Denali HD wheels on 2022 2500HD?

   By Rod Strawderman, February 20, 2024
   • 1 reply
   • 1.8k views
   • 
   • Crazy Canuck
   • February 23, 2024

3. Can i put a Multi-Flex Tailgate on a 2021 Silverado 2500HD that did not come with one?

   By tortiseshell, May 5, 2021
   • 14 replies
   • 38.4k views
   • 
   • Texas trailboss
   • February 21, 2024

4. Adding second battery for winch in parallel - 6.6 gas

   By hsfdchief200, February 13, 2024
   • 14 replies
   • 7.3k views
   • 
   • Another JR
   • February 21, 2024

5. Not a huge mod but tossed on some mud flaps

   By Pryme, September 17, 2023
   • 10 replies
   • 3.2k views
   • 
   • rjgvt
   • February 18, 2024

6. News flash

   By 07HD, February 17, 2024
   • 0 replies
   • 869 views
   • 
   • 07HD
   • February 17, 2024

7. Cell phone holder for iPhone with MagSafe

   By rjgvt, February 13, 2024
   • 5 replies
   • 4.9k views
   • 
   • rjgvt
   • February 16, 2024

8. 2024 LED replacement bulbs for taillights and interior domes?

   By davidm767, September 26, 2023
   • 5 replies
   • 12.3k views
   • 
   • Rich.Dev
   • February 16, 2024

9. Oil filter adapter plugs

   By jc_lopez, February 8, 2024
   • 0 replies
   • 1.9k views
   • 
   • jc_lopez
   • February 8, 2024

10. LED Rope lights in ARE cap

    By rjgvt, February 2, 2024
    • 4 replies
    • 5.2k views
    • 
    • rjgvt
    • February 4, 2024

11. Bed 2x board slots

    By rjgvt, January 28, 2024
    • 3 replies
    • 9.3k views
    • 
    • Crazy Canuck
    • February 1, 2024

12. 2024 Sierra SLT rear cross traffic and side trafficwarning

    By Big Ron, January 31, 2024
    • 0 replies
    • 610 views
    • 
    • Big Ron
    • January 31, 2024

13. 170 Amp alternator replacement

    By Hardstart, January 18, 2024
    • 3 replies
    • 8.8k views
    • 
    • Another JR
    • January 27, 2024

14. Banks idash

    By Agargano98, January 7, 2024
    • 5 replies
    • 6.8k views
    • 
    • LowOnCash
    • January 27, 2024

15. Front grill replacement?

    By Nick Taylor, January 21, 2024
    • 6 replies
    • 13.6k views
    • 
    • Kjduvall
    • January 24, 2024

16. Hidden Winch mount or Warn Transformer for 2021 2500 HD Duramax SLT

    By OmahaBen, January 24, 2024
    • 0 replies
    • 1k views
    • 
    • OmahaBen
    • January 24, 2024

17. Can the MDI2 w/ AcDelco TDS EDIT parameters or just flash OEM updates?

    By Epsilon Plus, September 2, 2023
    • 4 replies
    • 8.2k views
    • 
    • rjgvt
    • January 21, 2024

18. Front camera replacement?

    By Nick Taylor, January 21, 2024
    • 0 replies
    • 830 views
    • 
    • Nick Taylor
    • January 21, 2024

19. Installing an auto-dimming (or other) inside rear view mirror on your 2020-2023 HD

    By Epsilon Plus, January 20, 2024
    • 0 replies
    • 2.8k views
    • 
    • Epsilon Plus
    • January 20, 2024

20. Jump Seat Conversion Help

    By 3500Guy, February 12, 2023   

    • Console
    • jump seat
    • 5 replies
    • 11.7k views
    • 
    • Epsilon Plus
    • January 20, 2024

21. 1-3" Lift

    By Seapacer2, January 14, 2024
    • 2 replies
    • 1.9k views
    • 
    • Epsilon Plus
    • January 14, 2024

22. Timbren SES

    By Agargano98, January 7, 2024
    • 3 replies
    • 3.2k views
    • 
    • mrjulian416
    • January 12, 2024

23. tonneau covers

    By Jack Horn, January 4, 2024
    • 10 replies
    • 9.9k views
    • 
    • SoCal Angler
    • January 8, 2024

24. Frame mount running boards?

    By Hoginedgewood, May 28, 2022
    • 12 replies
    • 16.2k views
    • 
    • stlchevy61
    • January 6, 2024

25. A simple way to activate front end camera would be nice. 1 2

    By ManyCamaroz, December 7, 2023
    • 15 replies
    • 21.5k views
    • 
    • typhoon186
    • January 3, 2024