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Need an education on Birfields

Discussion in '40- & 55-Series Tech' started by cmilliron, Jan 24, 2003.

  1. cmilliron

    cmilliron

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    I have posted a picture of my Birfield at the following link....

    http://home.attbi.com/~cmilliron/wsb/html/view.cgi-photo.html--SiteID-539612.html

    First I would like to Identify the Model-style....

    and I have a bunch more questions:

    1.  If the are different lengths of outer axles, can they be interchangeable?  
    2.  Does the length demand a different hub type? mine is a stock looking ASCO
    3.  Is there a "longfield" replacement for the one I have?
    4.  Is the Londfield the best way to go?, I am going to put an ARB in the front...
     
  2. woody

    woody Internet Fireman Staff Member

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    < post my email reply here and make sure I'm right...lol - don't make me retype it! :D >

    I should really measure the differences this weekend....<note to self>....I intend to be in the garage on Sat, unless my plans go to crap (which they seem to do frequently, lately....)
     
  3. cmilliron

    cmilliron

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    Hey Brian....  spoke with Bobby Long today at Longfields... he thinks that I'm running late model LC birs based on the length 9 3/4"-9 7/8"...  the pickup birs are 9 1/2"...  he suggests converting to the pickup style Longfields as they are stronger and better material than the LC...

    In doing this, the outter hub snap ring cannot be used, but a bolt into the end of the axle with a fender washer to keep it from drifting in is the way to go...

    Is this what you did...???


    Cliff
     
  4. woody

    woody Internet Fireman Staff Member

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    exactly what I did....

    you will need the grind out the inside of your knuckles to get the later birfs or the longs to fit, but that's an "easy" process, and you any 78-older disc front axle owner should do anyways to prep for interchangability.
     
  5. MD11Fr8Dog

    MD11Fr8Dog CM09 Eight Ball winner

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    Or you can get some mini hubs like I did and you won't need the washer technique. You'll need to grind out the inside of the knuckles a little bit, or convert to mini knuckles. Here's a pic that speaks for itself!
    [​IMG]
     
  6. cmilliron

    cmilliron

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    I'm sending a money order to Bobby Long today for a set of Mini-truck longfields.... I think I am going to keep my cruiser hubs, that way I can utilize the mini-truch longfields (with a washer) and use my existing 1977 LC birfields with a snap ring.... I appreciate everyone's help on sorting all this birfield stuff out... BTW, Bobby Long told me that he has replaced only 15 Longfields out of 1700 sold.