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ring gear # decoding, please help

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by big d, Sep 14, 2002.

  1. big d

    big d 1/2 ton status

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    heres the #398482813401278 . this was on the big ring gear. can somebody let me know what it is. this is on the front. i checked the rear and it had nothing. it did have the paint marks where some one must have checked it manualy. thanks ahead of time. btw, man does gear oil stink ! /forums/images/icons/crazy.gif /forums/images/icons/tongue.gif
     
  2. beater74

    beater74 1/2 ton status

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    </font><blockquote><font class="small">In reply to:</font><hr />
    #3984828 <font color="red">1340 </font color> 1278

    [/ QUOTE ] 1340 take 40 and divide it by 13 and you get = 3.076923 or 3.08 i could be wrong but i think thats how it goes /forums/images/icons/grin.gif
     
  3. 4x4k20

    4x4k20 1/2 ton status

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    what other numbers are on there thats the part number there should be a date and the number of the ring gear and the pinion on it also look good it should be on there no wait you already have it the 13 is your pinion and the 40 is the ring gear divide the 13 into the 40 thats your ratio and the date is 12 dec. 78 year looks like 3.08
     
  4. big d

    big d 1/2 ton status

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    many thanks. /forums/images/icons/grin.gif
     
  5. big d

    big d 1/2 ton status

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    many thanks to you also. /forums/images/icons/grin.gif
     

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