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  1. black smoke
    Post

    headbolts keep breaking in a cumminms 400 big cam

    Could be an 86...
    Post by: black smoke, Dec 30, 2011 in forum: Peterbilt Forum
  2. black smoke
    Post

    headbolts keep breaking in a cumminms 400 big cam

    It's an 85
    Post by: black smoke, Dec 30, 2011 in forum: Peterbilt Forum
  3. black smoke
    Thread

    headbolts keep breaking in a cumminms 400 big cam

    The headbolts in the rear head keep breaking in my cummins 400 big cam. What causes this? Does anyone know why or have the same problem?
    Thread by: black smoke, Dec 30, 2011, 7 replies, in forum: Peterbilt Forum
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