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  1. #1
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    Jul 2011
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    Dana 44HD aka 44a experiences?

    I'm looking for two categories of responses. The first category would be from people who have actually ever broken a Dana 44HD/44a. I'd like to know what gearing/tire combo they were running, what they were doing when it happened, and what actually broke. The second category of responses I'm looking for are from those who wheel on this axle and have never broken it. Again, what gearing/tire combo, and what type of wheeling?

  2. #2
    Junior Member
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    Jul 2011
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    I've seen a couple 44a's break. Agitated pancake snaped a shaft with 35's when his bumpstop fell out and his tire literally stuffed itself into the fender (a smaller tire size wouldn't have done much better. It literally locked the tire). TX-WJ also broke a shaft with only 32's. No idea how, you're going to have to ask him but I'd say it was due to the housing flexing (just a guess). Arlo runs 35's with a locked d44a and I heven't seen him having issues, but his has a clayton's truss on it.

    It's a strong axle on paper, but the aluminum center section is a big weak point. Put a good truss on it and it will hold up to 35's, even locked.

  3. #3
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    I have not had any trouble with ours. I run 225/75/16 10 ply tires with 3:55 gears. Living in Nevada it sees a lot of high speed dirt roads, along with it's share of 4x4 ing.

  4. #4
    Junior Member
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    Quote Originally Posted by chopit4 View Post
    I've seen a couple 44a's break. Agitated pancake snaped a shaft with 35's when his bumpstop fell out and his tire literally stuffed itself into the fender (a smaller tire size wouldn't have done much better. It literally locked the tire). TX-WJ also broke a shaft with only 32's. No idea how, you're going to have to ask him but I'd say it was due to the housing flexing (just a guess). Arlo runs 35's with a locked d44a and I heven't seen him having issues, but his has a clayton's truss on it.

    It's a strong axle on paper, but the aluminum center section is a big weak point. Put a good truss on it and it will hold up to 35's, even locked.
    Most of the negative things I've read about the 44a are regarding the aluminum housing, both how it allows the axle tubes to flex and how it can be damaged on rocks. That's why I decided to add the MVC Truss/Skid, and a BTF diff cover. I also also have the Clayton long-arm upgrade, so it will be trussed top and bottom once the MVC is on.

  5. #5
    Junior Member
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    Jul 2011
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    9
    Quote Originally Posted by Dana44ZJ View Post
    I have not had any trouble with ours. I run 225/75/16 10 ply tires with 3:55 gears. Living in Nevada it sees a lot of high speed dirt roads, along with it's share of 4x4 ing.
    Unless you regeared you have 3.73's in your axles. The 44a didn't come otherwise. Especially the 5.9.

    Mine bent a tube when it contacted a curb at 20mph sideways. I also just ate the pinion bearing a little bit ago.

  6. #6
    Junior Member
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    Jul 2011
    Posts
    7
    My 44A is ripping the ring gear apart one tooth at a time. I think it is mainly due to the P/O's improper gear setup and aggravated by the housing flex. Running 3.73/ ls with 31x10.5. Can hear the teeth let go periodically when street driving but it also gets wheeled (mainly mud so far)

  7. #7
    Junior Member
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    Jul 2011
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    8
    my dana 44a is being rebuilt now, didnt actually break but was howling bad ever since i got it. had stock tires and suspension. bout 130k on it. other than that no issues have been running it with a 4 inch lift and 31's with it howling.

  8. #8
    Junior Member
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    Jul 2011
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    8
    my 44a has a LSD, Blue Torch Fab Diff cover, Mountain Valley Customs Skid/Truss and i run 35"s

    havnt broken one yet ... i did however bend the flange on one when i slid on some ice into a guard rail


 

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