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dana 44

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 78k5, Jul 4, 2000.

  1. 78k5

    78k5 1/2 ton status

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    My buddy says that I have a Dana 44 front axle in my 78, I say that it isn't because there are no markings on the axle and no obvious way to tell. I am telling him that my axles are 10 and 12 bolt axles? Is there a way to tell for certain by looking at the axle if it is a 44 or do we have to keep this war on forever? ha ha
     
  2. 8_YOUR_H2

    8_YOUR_H2 1/2 ton status

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    You just may have a 10 bolt...then again you may have a D44! go to the axel identification chart in the technical section of this website and that will help you!
    If all else fails Kick his a$$!! And call his mother names!
    Brent
     
  3. Zack

    Zack 1/2 ton status

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    If you look straight at it and it looks like it has two squared "ears" on the bottom of the pumpkin its a 10 bolt but I believe you have a dana 44 cause they started implementing 10 bolts in 79 I think.

    <font color=red>Zack Carlson</font color=red>
    <font color=yellow>Carlson@thestix.net</font color=yellow>
     
  4. 78Blazer

    78Blazer 1/2 ton status

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    Thats not true either. becuz I have a 78 and it has a 10 bolt. I believe 78 was the yr they started...


    Scott
    78blazer
     
  5. bablazer73

    bablazer73 1/2 ton status

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    from what i have seen, from 78-80 you could have either!!!but zack is right about the tabs. also the 10 bolt cover is almost round.

    your right. I don't understand the jeep thing!
     
  6. BI U JIMMY

    BI U JIMMY Registered Member

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    mine is a dana 44 and my Jimmy is 78, they made a gradual change to the 10 bolt
     
  7. Boss

    Boss 1/2 ton status Author

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    Let me throw in my .02 cents here. For Blazers, I think they changed to 10bolt front in 78'. For Jimmy's, I think they changed to 10bolt front in 80' or 81', if I recall correctly.
    Boss
     
  8. ken

    ken 1/2 ton status

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    I had a factory 1977 with a 10 bolt, and a factory 1978 with a Dana 44. The 10 bolts and Dana 44s were used interchangeably in the years 1977-1980. I have seen Dana 44s in 1980s.

    ken
     
  9. Emmettology 101

    Emmettology 101 3/4 ton status

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    Another thing to look at.
    Look straight at it, if the diff cover is rounded all the way around, it is a 10 bolt. If the diff cover is squared(similar to a stop sign) then it is a 44..

    HTH!

    Mike [​IMG]
    1982 GMC Jimmy - <font color=green>Emmett</font color=green>
    http://emmett.coloradok5.com
     
  10. Executioner

    Executioner 1/2 ton status

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    All Dana(Spicer) axles left the Dana(Spicer) factory with numbers stamped into the tube for id purposes,
    also most Dana(Spicer) axles had some form of casting marks in the pumkin area(case).
    Unless someone removed these marking, it is very easily to id them.
    Good luck

    P.s. If I was betting, I would first take a look at some 70-75 Blazers, most will have a Dana(Spicer) 44 in the front
    if yours looks like these, then Bingo...............
     
  11. HarryH3

    HarryH3 1 ton status Author

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    Chevy made the change from Dana 44's up front to 10-bolts during the middle of the '77 model year. This always came up when I was trying to buy parts for the front of a '77 K5 that I once had. Mine came with a 10-bolt, but I swapped it to a 44 from an older truck.

    A friend had 4.10's with the stock tires and hated 'em. I had 3.08's with 35's and hated 'em. We jacked up the trucks side-by-side and swapped out the axles. We both left happy! [​IMG]

    <font color=black>HarryH3 - '75 K5</font color=black>
    http://ThunderTruck.ColoradoK5.com
     
  12. bigjbear

    bigjbear 1 ton status Staff Member Moderator

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    Harry, how do you like those 4.10s? I have 35s and 3.08s right now and I am trying to decide on 4.10s or 4.56s. Jim.

    BigJBear '80 GMC
    http://www.bigjbear.coloradok5.com
     
  13. Thumper

    Thumper 1/2 ton status

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    I run 35s and 4:56 gears. If I had to do it again, Id probably go with 4:10s. The 4:56s are great, but I lose way too much on the hiway.

    Mike


    <font color=blue>Thumper
    85 Fullsize Jimmy
    [​IMG]
    <font color=red>Lets Go Wheelin! </font color=red>
     
  14. bigjbear

    bigjbear 1 ton status Staff Member Moderator

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