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Forum: GM Medium-Duty

Learn more about GM's new medium-duty trucks and diesel engines.

  1. Random de-rating

    Started by sandvader, 02-04-2021 17:38
    • Replies: 1
    • Views: 709
    02-04-2021, 21:51 Go to last post
  2. Hood Hinges for a 1989 Kodiak / TopKick

    Started by STPETEBLUE, 11-12-2020 17:44
    • Replies: 0
    • Views: 364
    11-12-2020, 17:44 Go to last post
  3. 2004 GMC C8500 7.8l limp mode

    Started by J&M Auto, 08-30-2020 15:29
    • Replies: 3
    • Views: 719
    09-01-2020, 12:30 Go to last post
  4. 2009 C5500 Curb Weight?

    Started by esbstuff, 07-30-2020 07:44
    • Replies: 1
    • Views: 616
    07-30-2020, 09:56 Go to last post
  5. 2005 C5500 Utility Body 4x4 LLY Mods

    Started by BobbyGSix, 06-29-2020 07:56
    • Replies: 1
    • Views: 650
    06-29-2020, 08:51 Go to last post
    • Replies: 0
    • Views: 583
    06-24-2020, 17:44 Go to last post
    • Replies: 4
    • Views: 42,167
    12-25-2019, 12:39 Go to last post
  6. Just checkin things out.

    Started by DickWells, 06-19-2019 17:29
    • Replies: 1
    • Views: 43,822
    06-19-2019, 18:18 Go to last post
    • Replies: 4
    • Views: 51,690
    02-27-2019, 10:50 Go to last post
  7. Exhaust brake isn't working.

    Started by CoyleJR, 07-08-2018 17:21
    • Replies: 1
    • Views: 2,054
    07-08-2018, 19:31 Go to last post
    • Replies: 3
    • Views: 3,235
    01-11-2018, 10:11 Go to last post
  8. Kodiak steering gear.

    Started by DickWells, 08-22-2017 17:07
    • Replies: 9
    • Views: 4,016
    12-14-2017, 16:40 Go to last post
  9. command rates 05 bouncing ?

    Started by thunderhead, 05-08-2017 15:03
    • Replies: 0
    • Views: 2,862
    05-08-2017, 15:03 Go to last post
    • Replies: 0
    • Views: 6,399
    10-20-2016, 22:13 Go to last post
    • Replies: 2
    • Views: 6,723
    03-09-2016, 09:33 Go to last post
  10. No low beam headlights 2008 Kodiak 4500

    Started by cowboywildbill, 10-15-2012 14:54
    2 Pages
    1 2
    • Replies: 20
    • Views: 29,478
    01-24-2016, 20:32 Go to last post
  11. 7.8L isuzu diesel oil in coolant.

    Started by Tom2010, 01-15-2010 17:15
    2 Pages
    1 2
    • Replies: 22
    • Views: 48,298
    09-28-2015, 09:10 Go to last post
  12. c4500

    Started by Duramax4, 08-29-2015 19:07
    • Replies: 1
    • Views: 5,073
    08-30-2015, 12:24 Go to last post
  13. Angry 2007 GMC Medium Duty with 7.8L Isuzu Engine

    Started by scooper, 12-27-2007 23:10
    • Replies: 15
    • Views: 67,219
    03-15-2015, 16:33 Go to last post
  14. 6.6 help

    Started by napadude09, 02-15-2015 20:09
    • Replies: 0
    • Views: 5,658
    02-15-2015, 20:09 Go to last post

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