Need some help

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by unknownthreads, Nov 27, 2021.

  1. unknownthreads

    unknownthreads Bobtail Member

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    Nov 27, 2021
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    I have a 2008 freightliner Columbia, I am needing to replace the air horns (hadley) I have asked around locally and no one has seen this. I am trying to figure out how to access the mounting screws.
     

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  3. blairandgretchen

    blairandgretchen Road Train Member

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    Not for nothing, but if I were you , I’d just install a set of train horns. $150 and done.
     
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  4. blairandgretchen

    blairandgretchen Road Train Member

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    Took me half an hour or so.
     
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  5. AModelCat

    AModelCat Road Train Member

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    Probably have to drop the headliner.
     
  6. blairandgretchen

    blairandgretchen Road Train Member

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    That’s about the point I stopped on mine. At the price and hassle of replacing the factory horns, aftermarket was an obvious choice.
     
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  7. unknownthreads

    unknownthreads Bobtail Member

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    Nov 27, 2021
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    I had a feeling that it was going to need to come out. The one local that gave me any hope said that figure 8 was a cap. I still didn’t see how it was coming off (the easy way)
     
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