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What model jake heads are these?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Mr79W900A, Jun 19, 2020.

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  1. Jun 19, 2020 #1
    Mr79W900A

    Mr79W900A Light Load Member

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    Mar 4, 2019
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    Hey guys if this is in the wrong spot tell me and I’ll move it. I found a set of jakes for my mechanical 3406c. Problem is the model tag is worn off. Anyone care to take a stab a what model they are. Thanks. Btw I’m looking for a set of 346d or 349a if anyone has a complete set to sell. Thanks.
     

    Attached Files:

    Mr79W900A, Jun 19, 2020
    Mr79W900A, Jun 19, 2020
    #1
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  3. Jun 20, 2020 #2
    Gambino1994

    Gambino1994 Light Load Member

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    causing a situation
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    I have 346d on my 3406c and that picture doesn’t look like mine. Alledgely you will not find a 349a they’re too rare but I’d like to find a set too
     
    Last edited: Jun 20, 2020
    Gambino1994, Jun 20, 2020
    Gambino1994, Jun 20, 2020
    #2
  4. Jun 20, 2020 #3
    Mr79W900A

    Mr79W900A Light Load Member

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    Mar 4, 2019
    British Columbia
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    Found a set last week close to me but they sold. Sold for 2500 cdn.
     
    Mr79W900A, Jun 20, 2020
    Mr79W900A, Jun 20, 2020
    #3
  5. Jun 20, 2020 #4
    Inderjit

    Inderjit Heavy Load Member

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    The 349A worked well but it was problematic and expensive to keep working properly over the long term.
    I would be hesitant to buy a used pair of heads.
     
    Inderjit, Jun 20, 2020
    Inderjit, Jun 20, 2020
    #4
    spsauerland Thanks this.
  7. Jun 20, 2020 #5
    Mr79W900A

    Mr79W900A Light Load Member

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    Mar 4, 2019
    British Columbia
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    Got an old boy who is the man at setting them up. They will work fine. Unless I find some 346d first. No one knows what’s model these are hey.
     
    Mr79W900A, Jun 20, 2020
    Mr79W900A, Jun 20, 2020
    #5
  8. Jun 20, 2020 #6
    Gambino1994

    Gambino1994 Light Load Member

    187
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    Jan 22, 2009
    causing a situation
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    Is there a “front>>>” and “<<<rear” cast into them? My 346’s have that, maybe those are a pacbrake of somekind. Seems there’s guys who had bad luck with 349’s and some who get a million miles out of them. The 349 need some kind of special tool to adjust them but they’re supposed to have more braking power. My 346’s on my 3406c are roughly 1/2 to 2/3 as strong as the 340 on my 3406e I had
     
    Gambino1994, Jun 20, 2020
    Gambino1994, Jun 20, 2020
    #6
  9. Jun 20, 2020 #7
    Mr79W900A

    Mr79W900A Light Load Member

    117
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    Mar 4, 2019
    British Columbia
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    Ya the old boy has all the tools. Ya it’s a gamble on how they will work. I also have a brake saver so it’ll be deadly to have both. Iv been trying to look at castings online to see if the 349 is different cause it must be. But if these are the b or c jake in 346 I don’t want em.
     
    Mr79W900A, Jun 20, 2020
    Mr79W900A, Jun 20, 2020
    #7
  10. Jun 20, 2020 #8
    Mr79W900A

    Mr79W900A Light Load Member

    117
    72
    Mar 4, 2019
    British Columbia
    0
    Some other angles of them.
     

    Attached Files:

    Mr79W900A, Jun 20, 2020
    Mr79W900A, Jun 20, 2020
    #8
  11. Jun 21, 2020 #9
    Inderjit

    Inderjit Heavy Load Member

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    Sep 17, 2017
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    The yellow and blue plates would have had the model number on them. Carefully clean them and you might be able to see what they are.
     
    Inderjit, Jun 21, 2020
    Inderjit, Jun 21, 2020
    #9
  12. Jun 21, 2020 #10
    Inderjit

    Inderjit Heavy Load Member

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    Sep 17, 2017
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    Looking at your pictures I'm pretty sure those are 349 Jake brakes.
     
    Inderjit, Jun 21, 2020
    Inderjit, Jun 21, 2020
    #10
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