2000-2014 Silverado HD & Sierra HD

14,430 topics in this forum

1. Transfer case fluid

   By d2bnorman, January 31, 2004
   • 0 replies
   • 438.6k views
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   • d2bnorman
   • April 30, 2007

2. front and rear diff oil

   By snorydermb, October 4, 2006
   • 0 replies
   • 328.4k views
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   • snorydermb
   • January 2, 2007

3. Dreaded "Reduced Engine Power" issue 1 2 3 4

   By 6.0 Smitty, May 9, 2014
   • 47 replies
   • 291.2k views
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   • pound41
   • July 2, 2020

4. 4L80E Fluid Capacity

   By swl2126, October 28, 2003
   • 0 replies
   • 269.5k views
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   • swl2126
   • July 29, 2011

5. Recommended Oil For 6.0 W/over 100k

   By wog2006, September 11, 2009
   • 14 replies
   • 243.8k views
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   • Cowpie
   • February 12, 2015

6. How To Improve 6.0 Gas Mileage? 1 2 3 4

   By tbone7213, February 23, 2008
   • 49 replies
   • 235k views
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   • pappastratos
   • September 26, 2013

7. Interior swap 1 2 3 4 6

   By 08gmc17, November 24, 2018
   • 84 replies
   • 217.5k views
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   • afmayer
   • June 19, 2025

8. 6.0 vs. 8.1liter engine 1 2 3 4 6

   By carload4916, March 3, 2013
   • 87 replies
   • 216.2k views
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   • David89GMC
   • July 14, 2020

9. 3 groove or 4 groove pitman arm? 1 2

   By sahls01gmc, March 2, 2016
   • 23 replies
   • 209.9k views
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   • mc4life27
   • June 23, 2021

10. Hole in my Transfer Case 1 2 3 4 9

    By Wardster, January 12, 2006
    • 134 replies
    • 191.2k views
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    • RoarinRow
    • January 12, 2019

11. What is the difference 2500 vs. 2500HD

    By chevyagogo9, February 7, 2004
    • 0 replies
    • 190.7k views
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    • chevyagogo9
    • January 1, 2007

12. Horsepower Ratings On The 6.0l

    By hdeatsprius, June 27, 2008
    • 0 replies
    • 189.8k views
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    • hdeatsprius
    • June 28, 2008

13. Help- Check Engine Light Flashing Randomly!

    By MKWL, September 7, 2009
    • 0 replies
    • 169.2k views
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    • MKWL
    • October 3, 2009

14. Battery Drain? Help Needed! 1 2

    By Butler, July 19, 2012   

    • battery drain
    • 24 replies
    • 167.8k views
    • 
    • ajot4u
    • November 11, 2021

15. How many miles do you have on your 6.0 liter motor? 1 2 3 4 22

    By john857, January 25, 2007
    • 319 replies
    • 164.5k views
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    • Dave Armstrong
    • March 23, 2020

16. Gear ratio 1 2

    By cliobogger, June 18, 2013
    • 21 replies
    • 159.1k views
    • 
    • Yuuuup
    • November 2, 2019

17. Where Is The Turn/flasher Relay On An 03 2500? 1 2

    By Coachmenguy, November 4, 2009
    • 27 replies
    • 155k views
    • 
    • Dustin Parker
    • July 16, 2020

18. P0101 Error Code Help 1 2

    By xtmsports, May 26, 2008
    • 17 replies
    • 154.5k views
    • 
    • josedlf
    • February 2, 2012

19. Best oil for the duramax

    By Rock Hopper, February 19, 2007
    • 0 replies
    • 141.9k views
    • 
    • Rock Hopper
    • March 29, 2007

20. Fuel Tank Capacity 1 2

    By CapnDean, March 30, 2011
    • 20 replies
    • 141.8k views
    • 
    • bigred6974
    • October 9, 2020

21. 2500HD rear axle fluid capacity

    By RyanbabZ71, September 26, 2001
    • 0 replies
    • 141.7k views
    • 
    • RyanbabZ71
    • October 10, 2001

22. Front And Rear Diff Fluid Change

    By chechem1984, October 5, 2009
    • 0 replies
    • 141.2k views
    • 
    • chechem1984
    • October 9, 2009

23. PLEASE HELP!! Very LOUD Ticking 6.0L

    By COSilver, December 28, 2004
    • 0 replies
    • 134.8k views
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    • COSilver
    • August 30, 2007

24. Pics Of Your H.d 1 2 3 4 26

    By anteater, May 31, 2008
    • 377 replies
    • 133.5k views
    • 
    • casey.mikl
    • September 17, 2017

25. What Is Life Expectancy In Mileage Of 6.0

    By macguy, February 9, 2010
    • 0 replies
    • 133.5k views
    • 
    • macguy
    • February 21, 2010