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Dana 44 vs. GM 10 Bolt

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Wheels, Sep 20, 2000.

  1. Wheels

    Wheels 1/2 ton status

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    How do you identify the difference between a Dana 44 and a GM 10 bolt front axle? I have a 79 which is right around the cross over year. A friend of mine has a 78 and on a side by side comparison I can't tell the difference. There is no tag any where on the axle. Thanks ahead of time.
     
  2. Rockblazer

    Rockblazer 1/2 ton status

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    The casting on a 10 bolt is more round like in shape. Also the 10 bolt will have 28 splines compared to 31 on the 44. Also and someone can correct me if I am wrong, the brake calipers on a 44 will be different. The 10 bolt caliper is held on with 2 allen head bolts that go through the caliper and the pads ride on these. The 44 has one smaller allen head screw on the back of the caliper, this holds on a keeper and a spring. Lastly, the 44 should be stamped with a 44 on the casting somewhere. However I think not all of them were. Been a while so forgive any mis information!

    "You're right... I don't understand that Jeep thing!"
     
  3. KrebsATM02

    KrebsATM02 1/2 ton status

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    I am pretty sure the easiest way is that a 10-bolt has little square ears on the bottom of the differential. Correct me if i am wrong. - Doug

    Doug Krebs
     
  4. Blazer79

    Blazer79 1/2 ton status

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  5. Wheels

    Wheels 1/2 ton status

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    Thanks Guys.
     
  6. Kyle89K5

    Kyle89K5 1/2 ton status

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    The 44 I've got the caliper is the style with the 2 allen head bolts. It's just a standard Delco style caliper. Two different style were offered, the Delco style and the Bendix. Until you look, there's no telling what the General put on your rig.

    BTW, Rockblazer, you still wanna sell yer stuff?

    Kyle
    89K5
     
  7. Emmettology 101

    Emmettology 101 3/4 ton status

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    The 10 bolt has a round diff cover and the 44 has a "stop sign" shaped cover.

    And the 44 is a 30 splins unit.

    Other than that, the other guy covered it pretty well.

    Mike [​IMG]
    See <font color=green>EMMETT</font color=green> -&gt; http://emmett.coloradok5.com
     
  8. ken

    ken 1/2 ton status

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    He covered it pretty well, except that the calipers are the same for both the 10 bolt and Dana 44.

    ken
     

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