help identify axle shaft dana 44 on 86 CJ7 - JeepForum.com
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post #1 of 28 Old 06-25-2015, 09:30 PM Thread Starter
royprice42
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Cj help identify axle shaft dana 44 on 86 CJ7

Hi,
I've just purchased a 1986 CJ7 Laredo, and it has a bent rear passenger side axle. It's an aftermarket Dana 44, at least by the shape of the diff cover. There are no tags or numbers anywhere on the diff cover or axle tubes, at least I couldn't find any. So, I pulled the old shaft (ha!) it's a one piece, has 30 splines and measures 28 13/16" from outside of flange to the tip.

Here's the issue. I can't find a replacement! Anyone have any idea what this axle came off of or where I can find a replacement axle?

many thanks!
RP

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20150617_153158.jpg   20150621_172745.jpg   20150625_181644.jpg  

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1986 CJ7 Laredo, working on restoring it.
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post #2 of 28 Old 06-25-2015, 10:29 PM
CSP
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How is the cover's shape any different than a stock D44? How do you know that just the cover wasn't swapped out? The 86 CJ7 did come with a D44.
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post #3 of 28 Old 06-25-2015, 11:02 PM
BrutusBlue
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So, let's answer your questions instead of posing new ones...
First off, yes, if your CJ7 was made in the last half of 86, your one of the lucky ones with a stock Dana 44 rear end, which naturally means what you have is likely all stock. Second, you can easily order a replacement from your choice of numerous suppliers whether it's stock or not just tell them your measurements and your done, just make sure to include your axles brake drum size so the brake receives the correct axle size for the hole. How did you discover its bent? Is the tube bent too? If you think it's not stock check the build code on the tube, if there is one still stamped along the back side of it.
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post #4 of 28 Old 06-26-2015, 12:40 AM
BagusJeep
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All Dana 44 axles of the period were stamped on the axle tube with the date and Bill of Materials number. It may not be easy to see under nearly 40 years of grime but it is there, usually a horizontal line of numbers on the right hand tube as you look from behind.

If you clean the old paint on the axle tube with thinners you may find it. Even better rub the surface with a crayon and see if the indents pick up the wax. You can then lightly rub over the top with fine paper on a block to remove excess wax and this may make the numbers appear or take a rubbing with a piece of paper and a pencil.

You may find a bill of material number 605289 which were the 1986 Dana 44 for the CJ7s, actually a Dana 44/216

In any case you can buy Dana axle shafts from the length, number of splines, number of bolts, bolt circle etc. For instance if it is:

28.79" long
1.31" spline diamter with 30 splines
1.81" spline length
7.06" flange diamter
5.50 x 5 bolt pattern
SEMI FLOATING

Then it is a 72903-1X etc.

You need to get the DANA catalogue online and take these measurements to work out which one you need. If you hav ethe Bill of Materials number it will be easier to cross reference.




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post #5 of 28 Old 06-26-2015, 12:42 AM
Matt1981CJ7
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Quote:
Originally Posted by BrutusBlue View Post
So, let's answer your questions instead of posing new ones... How did you discover its bent? Is the tube bent too?
Or pose new ones...either way.

Matt
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post #6 of 28 Old 06-26-2015, 05:46 AM
BrutusBlue
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Quote:
Originally Posted by Matt1981CJ7 View Post
Or pose new ones...either way.

Matt
instead of "just" posing new ones...left out a word...Sorry, I will slow it down for you
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post #7 of 28 Old 06-26-2015, 05:56 AM
Matt1981CJ7
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Quote:
Originally Posted by BrutusBlue View Post
instead of "just" posing new ones...left out a word...Sorry, I will slow it down for you
Just yanking your chain, big guy.

Don't let it ruffle your feathers. LOL!

Matt
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post #8 of 28 Old 06-26-2015, 06:19 AM
BrutusBlue
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Originally Posted by Matt1981CJ7 View Post
Just yanking your chain, big guy.

Don't let it ruffle your feathers. LOL!

Matt
No worries friend...your never condescending.
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post #9 of 28 Old 06-26-2015, 06:26 AM
Matt1981CJ7
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No worries friend...you're never condescending.
Fixed it for you.

Matt
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post #10 of 28 Old 06-26-2015, 07:03 AM Thread Starter
royprice42
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Hi All. These are all great questions.

CSP: It is certainly possible this is only a 44 cover. I contacted the guy I bought the jeep from, and he 'doesn't know, just got it from a junkyard, they didn't tell him what it came off of, just that it was a 44'. It is strange that there are no tags. Perhaps someone will recognize if it's a 44 or not from the attached pictures.

Brutusblue: I have the original sales sheet, which indicates the jeep was actually sold to the first owner in November 1985 >> So, not one of the lucky ones, it would seem. Certainly it's an aftermarket 44(?) from some unknown vehicle.

I believe it is only the axle shaft not the tube because the tire wobbles. I jacked it up, took the tire and drum off, started it and put it in gear, and the flange wobbles like crazy. Plus, there seems to be no camber, although I've not had this checked.

Brutusblue and Bagusjeep: I will check the tube again for a build code. I checked but couldn't find it. I'm wondering if the junkyard didn't grind it off, because they switched the diff cover. ……Can you tell from the pics if it's a 44? I will follow your suggestions to try and order it off of the dimensions, once we can confirm it's a 44.


Thanks again!
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post #11 of 28 Old 06-26-2015, 07:54 AM Thread Starter
royprice42
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Here is a youtube video of the wobbling flange…..
https://www.youtube.com/watch?v=-KX-...r#action=share

We first noticed there was an issue b/c driving it home my wife followed me in our other car, and she told me right away the rear right tire was wobbling.

I checked the right side axle tube again, back and top, for any numbers. They are just not there! Annoying. Well, I attached a pic of this area on the tube.…..

thanks again for all your help!
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post #12 of 28 Old 06-26-2015, 07:59 AM
CSP
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That is a Dana 44 and that is a stock Dana 44 cover. There's nothing aftermarket visible in the photos. Aftermarket doesn't indicate from another vehicle. Aftermarket means something non-original to any vehicle or custom made. It sure looks like a stock CJ Dana 44 to me. There are no other Dana 44s which swap directly into a CJ and maintain the same width, spring perch position and other mounts.

The BOM is stamped in the passenger side tube just to the right of the cover. It's usually hard to find and may require removing paint to see it.


You can look up the number here: http://www2.dana.com/expertforms/deabill.aspx or here: http://www.patooyee.com/Dana/main_dana.htm
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post #13 of 28 Old 06-26-2015, 08:17 AM Thread Starter
royprice42
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Hi CSP. I was using the term 'aftermarket' to mean that this axle did not come 'stock' with this jeep. Of that we are certain, but it's good news to know this is a stock dana 44. And it's from a CJ. I'm happy about that, and thanks for confirming. Very helpful. Sorry for the confusion.

I'll check again for the BOM….with a wire brush this time.

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post #14 of 28 Old 06-26-2015, 10:58 AM
Mike Romain
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That sure looks like the D44 under my 86. Someone will correct me if I am wrong, but I didn't think any junkyard 44's except one from a CJ7 would fit under there without serious modifications.

Mike
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post #15 of 28 Old 06-26-2015, 02:04 PM
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Run your numbers...check your build code...you're likely to find yours is the second half production run for 86 and all stock? What gear ratio is it? If the gears were unchanged, more likely to be 3.31...seems most of the last CJ Dana 44's were.
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axle shaft , dana 44 , identification

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