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Dana 44 axle diameter/ ubolt size??

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Convertiyota, Aug 27, 2001.

  1. Convertiyota

    Convertiyota Registered Member

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    Need to know what size ubolts to get for the front. Are they 3" like the 12 bolt?? Thanks

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    Check out the Convertible Yota
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  2. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Three of them are 3" and the other one that goes under the pumpkin is about 3 3/8".

    Tim
    '84 Chevy K10, lifted, loud, fast, and 3/4 ton axles
     
  3. Executioner

    Executioner 1/2 ton status

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    FYI there are at least two different axle tube diameters for GM Dana(Spicer) 44's !
    If memory is working it like 2 5/8", and 3".
    Also as noted the one u-bolt that goes over the diff. is slightly larger(1/4").
     
  4. thatK30guy

    thatK30guy 1 ton status Premium Member

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    On the 'first design' axles - '73 to '76, the front D44 tubes are 2 3/4" outside diameter.

    The 'second design' axles - '77 to '91, both D44's and 10B's are 3" diameter tubes.

    All the u-bolts that go around the differential housing part (the 1 bigger u-bolt) are a 3 5/8" diameter.

    So, you need 3 u-bolts at either 2 3/4" or 3" depending on what 'design' axle you have, and 1 u-bolt, 3 5/8" to fit the passenger side differential.

    <font color=blue>"Ya don't have to beat it, ya know!!!</font color=blue>

    <a target="_blank" href=http://coloradok5.com/gallery/thatK30guy>http://coloradok5.com/gallery/thatK30guy</a>
     
  5. Convertiyota

    Convertiyota Registered Member

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    Can I get a 2nd vote for the size that goes over the diff housing?? We've got 3 3/8, 3 5/8, and 1/4" larger!!!!!!! Thanks ya'll.

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  6. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Trust me on that measurement I gave you!!

    I got the measurements from my Superlift catalog!! [​IMG] Since when has Superlift ever been wrong?

    <font color=blue>"Ya don't have to beat it, ya know!!!</font color=blue>

    <a target="_blank" href=http://coloradok5.com/gallery/thatK30guy>http://coloradok5.com/gallery/thatK30guy</a>
     
  7. BOWTIE

    BOWTIE 1/2 ton status

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    Wes is right. I just measured an old U-bolt from my old 10 bolt and it measured 3 5/8. The others measured 3".

    <font color=red>"Wheel hard or go home."</font color=red>
    click to see <a target="_blank" href=http://www.off-road.ws/images/users/BOWTIE/bowtie5.jpg> BOWTIE</a>
     

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