Unknown Auxiliary Box

Discussion in 'Peterbilt Forum' started by Gt020, Feb 14, 2023.

  1. OLDSKOOLERnWV

    OLDSKOOLERnWV Captain Redbeard

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    You should have a message shortly…..

    D97F615D-38E9-4050-8206-B7742D9FF155.jpeg
     
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  3. Last Call

    Last Call Road Train Member

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    I kinda watch the 359 Enthusiast parts & trucks page on FB.. I've seen boxs on there often ..
    If it was me I would look for a set that have the 1450 torque rating .. thats just me though .. its getting harder & harder to find somebody that knows their way around those boxs anymore .. I only know enough to be Is dangerous..
    I can tell ya what happens when you over torque them and what it sounds like ..lol
     
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  4. OLDSKOOLERnWV

    OLDSKOOLERnWV Captain Redbeard

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    The 1241 is a heavier twin countershaft auxiliary that’s more desirable for the higher hp engines. I found one in a KW last year but owner wouldn’t commit to selling it. Found a W900A with a 8V71 4x4 setup, haven’t got to really look closely at it though….
     
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  5. Hammer166

    Hammer166 Crusty Information Officer

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    Audible Learning..... LMAO
     
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  6. Last Call

    Last Call Road Train Member

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    Your right about the 1241.. I've read that theres some impeovements that can be done on a 1241 too..
    I've got a 1241 in that 85 ...359 that got laid over .. my plans were to use it in the other 85 that I've been building .
     
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  7. Last Call

    Last Call Road Train Member

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    It sounds alittle something like this.... .. it starts whining like a room full of 2 year olds .. (thats when you need to back outa it )
    If not then it starts a death scream like a locker room full of teenage girls ..and the shifter starts shaking like a cat crapping razor blades for about 45 seconds then you'll hear a pop.. the shifter goes limp and it gets quiet..And it's all over but the crying
    Don't ask me how I know....lol
     
  8. Cattleman84

    Cattleman84 Road Train Member

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    That looks to be cast iron. Dependent on where exactly its cracked a good welder could probably weld it up for you. Ive welded a few gearboxes myself in the past... One is still in my '72 F-250. To do it properly it would require that you disassemble the entire gearbox though, as the casting needs to be preheated to about 400 degrees.
     
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  9. Cattleman84

    Cattleman84 Road Train Member

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    ROFLMFAO... That sounds about like my love life... Lol
     
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  10. Gt020

    Gt020 Bobtail Member

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    So that was my original plan, then I saw that the one gear is missing several teeth sitting in the bottom of the case. Go figure the cases don’t just magically crack without a little help! Now it’s turned into one of those OK, how much do I put into this one. That’s why I’ve turned to just replacing it especially since welding cast iron isn’t exactly a sure fire fix.
     
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