77 Ford FW axles

Discussion in 'SFA KJ' started by Rescu2000, Sep 20, 2009.

  1. Rescu2000

    Rescu2000 Full Access Member

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    How would these work for a SFA swap?
    77 model dana44 3.73 gear ,77 model 9 inch 3.73

    Not sure what they are out of. I am going to ask...
     
  2. J-Thompson

    J-Thompson Full Access Member

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    probably work out fine
    If I had to guess I would say Bronco or 1/2 ton p/u
    3.73's are pointless
    you will need to regear
    I think that both of those carriers will go to 4.88 maybe 5.13
    the one I am not sure of is the 9"
     
  3. Rock Lizard

    Rock Lizard Full Access Member

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    Deepest gearing I have seen for the 9" is 7:33 gears, which might be a little overboard for an SFA setup unless you are running 52" LTB's. 5:13's will work great for 35's as a daily driver and rock crawling. And that 77 HP44/9" combo will be a great swap, infact it is the same setup Ted (USAFCOP) has sitting here ready to go into his KJ.
     
  4. incommando

    incommando Banned

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    That is a great axle set for a 1/2 ton. For those looking for a set like it, I think '77 is as new as you can go without a ton of work. The newer ones have suspension mounts cast into the housing and are a bear to do anything with.