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Dana44 axle code question

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Ddragggon, Nov 7, 2001.

  1. Ddragggon

    Ddragggon 1/2 ton status

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    I'm trying to determine the gear ratio on my K20, but am unsure what the axle codes translate out to.

    with my brief glance at the 14bff in the rear at work, its too far covered in garbage, and as I said, I;m at work... the front one is a flat top knucled ( hooray) D44, with what I think is the date code stamped on the carrier, as well as `D44-C' the other number is C36585 which if I recall means Chevy, 1973, 6 month, 5th day, 8th hour, 5th axlem but I could be mistaken... ( this is part of the casting, not a stamp on the tubes) at any rate, I'll be scrubbing the crud off the 14bff and seeing if I can find the stamping codes on that one. those are on the front side(forward) drivers side of the axle tube right?

    thanks in advance,
    -Rich

    My truck isn't ugly, you have a skewed sense of beauty

    <font color=blue>2007 Ford XLS++ intrepid Ram Superduty 7000 R-type's suck</font color=blue>
     
  2. Executioner

    Executioner 1/2 ton status

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    If you really want to trust the axle code, then you must first get the Dana(Spicer) Bill of Materials #
    that is usually stamped into the long tube, facing foward on the tube, and posssibly the tag that was attached
    at the factory.

    The other c # you are quoting is not a date code, it sounds like a p/n.

    In you case is there not an easier more positive way to know for sure ?
     
  3. Ddragggon

    Ddragggon 1/2 ton status

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    I'll just check the 14BFF when I get home. I didn't want to do it here at work, since that would entail getting dirty, and they frown on me being at work and covered with grease while I work on thier pooters ( network administrator)

    -Rich

    My truck isn't ugly, you have a skewed sense of beauty

    <font color=blue>2007 Ford XLS++ intrepid Ram Superduty 7000 R-type's suck</font color=blue>
     
  4. dogman

    dogman 1/2 ton status

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    If your truck is old, then that original tag was removed long ago.
    I try to stamp the ratio on the cover after looking inside.
    Now this is just out of my head , like you I'm sittin at work.
    common chevy gear ratio 3. 73 is a pinion 11 teeth, ring 41 teeth. 41dividedby11 = 3.73
    if the experts are online maybe they will look in and attach the whole story for you..
    look inside count the teeth and change the oil while your under there..
     
  5. Ddragggon

    Ddragggon 1/2 ton status

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    the truck is deffinately old...

    1973 K20 suburban... its got 230,000 miles on it, and about to get a new engine, transmission transfercase, and possibly a D60 at some point....

    -Rich

    My truck isn't ugly, you have a skewed sense of beauty

    <font color=blue>2007 Ford XLS++ intrepid Ram Superduty 7000 R-type's suck</font color=blue>
     
  6. Executioner

    Executioner 1/2 ton status

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    You missed the piont ! You don't have to get dirty. Have you heard of the method of rolling the vehicle and trying to count ?
     
  7. Ddragggon

    Ddragggon 1/2 ton status

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    with my luck, I'd run myself over... :-P

    I need to go say Duh for a while... :-)

    -Rich

    My truck isn't ugly, you have a skewed sense of beauty

    <font color=blue>2007 Ford XLS++ intrepid Ram Superduty 7000 R-type's suck</font color=blue>
     
  8. dogman

    dogman 1/2 ton status

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    dah, explain this roll an count? will you really know what's the ratio to buy ahead of a rebuild??

    I ain't stupid, I'm just old..
     
  9. Executioner

    Executioner 1/2 ton status

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    Yes, and it works every time, front and rear, front and rear lockers.
    Sorry I can't take credit for the method, so someone else can post it.
    P.s. my batteries ran out in the rear end scope !
     

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