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Help Replacing the bolts holding fifth wheel to frame

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by roadmap65, Jan 16, 2019.

  1. Jan 16, 2019 #1
    roadmap65

    roadmap65 Light Load Member

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    My truck is going through a restore this winter. I’m sand blasting the frame , I had to cut all the Huck bolts off and removed the fifth wheel. Has anyone replaced these with grade 8 bolts instead of going back with the huck bolt? Replacing with huck bolts is big bucks and requires going to a frame shop that has the fancy tool they use. Can I go back with 5/8 th grade 8 flange bolts with shoulder nuts?
    The picture below is not my project but those are similar to the huck bolts I want to replace
     

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    roadmap65, Jan 16, 2019
    roadmap65, Jan 16, 2019
    #1
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  3. Jan 16, 2019 #2
    bigguns

    bigguns Road Train Member

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    Yes. Absolutely fine. Take some time and look at some trucks. You will be amazed at the number and size of the bolts on some trucks.
     
    Last edited: Jan 16, 2019
    Reason for edit: Left out key words. Didn’t write a sentence.
    bigguns, Jan 16, 2019
    bigguns, Jan 16, 2019
    #2
    spsauerland, BoxCarKidd and roadmap65 Thank this.
  4. Jan 16, 2019 #3
    Heavyd

    Heavyd Road Train Member

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    +1, regular frame bolts(grade 8) are fine.
     
    Heavyd, Jan 16, 2019
    Heavyd, Jan 16, 2019
    #3
    roadmap65 and bigguns Thank this.
  5. Jan 17, 2019 #4
    boneebone

    boneebone Road Train Member

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    Grade 8 is fine, the reason huck bolts are used for that application is to eliminate the chance of the bolts ever coming loose or the need to inspect and re-tighten them from time to time.
     
    boneebone, Jan 17, 2019
    boneebone, Jan 17, 2019
    #4
    roadmap65 Thanks this.
  7. Jan 18, 2019 #5
    Dino soar

    Dino soar Road Train Member

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    I like grade 8 flange bolts.
     
    Dino soar, Jan 18, 2019
    Dino soar, Jan 18, 2019
    #5
    roadmap65 Thanks this.
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