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Old October 6th, 2008, 06:44 PM   #1
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Default Dana 30 vs Dana 44 ??

I am thinking of adding some more lift and tires to the xj. My question is would it be worth my time and money to swap a dana 44 into the front to replace the hp 30. I know the u-joints are the same size, and the 44 shafts are a little bigger. So if I add a good set of axle shafts and u-joints to the 30 how much strength difference will there be between the two? I plan to run 35's or 36's Any thoughts on this would be great.
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Old October 6th, 2008, 06:58 PM   #2
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4:88's or higher run the 30, if you can spring for it get a super 30 kit
If you want to run lower the 44.
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Old October 6th, 2008, 07:02 PM   #3
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I ran 35-10.5 boggers on a cj 30 with chromos for over a year with no problems. I would check pricing on both ways and go from there.
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Old October 6th, 2008, 07:11 PM   #4
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I just found this link, they are still 27 spline but claim the will give you a new axle if you break one. Do they really honor that warranty with no questions? If they do that may be a good route since it is cheaper than the 30 spline shafts.
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Old October 6th, 2008, 07:13 PM   #5
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Originally Posted by badazzamc View Post
I just found this link, they are still 27 spline but claim the will give you a new axle if you break one. Do they really honor that warranty with no questions? If they do that may be a good route since it is cheaper than the 30 spline shafts.
they will, provided you dont go over there sugested tire size ect
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Old October 6th, 2008, 07:27 PM   #6
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http://www.drivetrainoutlet.com/Jeep..._04_TJ_XJ.html

forgot the link
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Old October 6th, 2008, 08:35 PM   #7
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Yea, they better not break for that price. At least D30 shafts are very plentiful.
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Old October 6th, 2008, 08:37 PM   #8
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A 44 isn't much of an upgrade IMHO. Stick with the 30, if you're not too stupid with the skinny pedal you'll be fine.
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Old October 6th, 2008, 10:47 PM   #9
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A 44 isn't much of an upgrade IMHO. Stick with the 30, if you're not too stupid with the skinny pedal you'll be fine.
agreed.
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Old October 6th, 2008, 10:48 PM   #10
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that is priced too high.
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Old October 7th, 2008, 03:27 AM   #11
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that is priced too high.
X2

I'm pretty sure I've seen those somewhere around 450ish before.
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Old October 7th, 2008, 08:55 AM   #12
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A 44 isn't much of an upgrade IMHO. Stick with the 30, if you're not too stupid with the skinny pedal you'll be fine.
Its also either a pain in the ass or expensive (or both) swap due to the 5x4.5" bolt pattern.

Beef the D30.
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Old October 7th, 2008, 09:01 AM   #13
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I am running d44 knuckles on my d30, in ther pursuit of upgrading to chromos with a bigger u-joint.


Of course i wont upgrade the shafts untill i bust all the extra sets i have.
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Old October 7th, 2008, 02:14 PM   #14
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what did the 44 knuckle do for you?
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Old October 7th, 2008, 02:28 PM   #15
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what did the 44 knuckle do for you?
i believe you then have the option to run locking hubs??? i may be wrong just a guess though.
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Old October 7th, 2008, 02:29 PM   #16
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Quote:
Originally Posted by badazzamc View Post
what did the 44 knuckle do for you?
1. They are flat top knuckles so this allowed for high steer

2. The knuckles also have a larger opening which allow for a bigger *U-joint to fit through.

*However you would need the shafts that require this larger U-joint to take advantage of this.


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i believe you then have the option to run locking hubs??? i may be wrong just a guess though.
Im working with a CJ-7 d30 so i am uncertain of this transfer to an xj / yj / tj etc.

Last edited by Pokerob; October 7th, 2008 at 03:13 PM.
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Old October 7th, 2008, 02:44 PM   #17
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Quote:
Originally Posted by pokerob View Post
1. They are flat top knuckles so this allowed for high steer

2. The knuckles also have a larger opening which allow for a bigger *U-joint to fit through.

*However you would need the shafts that require this larger U-joint to take advantage of this.



Im working with a CJ-7 d30 so i am uncertain of this transfer to an xj / yj / tj etc.
Same size hole as the 30, I use cj parts on 44 knuckles. Plus the larger u joint is not any wider than the small one it just has larger diameter caps and cross shafts
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Old October 7th, 2008, 03:07 PM   #18
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what about running ZJ front shafts? I was told they have bigger ujoints? also gets rid of the vaccume issue. in my YJ that is.
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Old October 7th, 2008, 03:10 PM   #19
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Same size hole as the 30, I use cj parts on 44 knuckles. Plus the larger u joint is not any wider than the small one it just has larger diameter caps and cross shafts
thanks.

So its just the AM chromo shafts that allow for a bigger u-joint?

btw Thanks 99grandtj

I got all my hs stuff done with the knuckles i got from you, worked great.

drives down the road perfectly straight.
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Old October 7th, 2008, 03:24 PM   #20
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Quote:
Originally Posted by pokerob View Post
thanks.

So its just the AM chromo shafts that allow for a bigger u-joint?

btw Thanks 99grandtj

I got all my hs stuff done with the knuckles i got from you, worked great.

drives down the road perfectly straight.
Yes for a cj you need AM shafts. No problem
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