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Unread 05-26-2004, 03:29 PM   #1
jeepwillies
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Dana 30 & 44 Axels

I am getting ready to purchase a Dana 30 front and 44 rear axel to swap into my 52 CJ. I was told to go with early (1970-1975) CJ Dana 30 and 44's. The dude at the Jeep store says that I need a newer front (30) than I originally thought, because the 1970 to 1975 CJ's had drum breaks on the front, which is part of the reason I am swapping them in the first place. Can anyone set me straight on this? Do I need a newer model? Really I just want two axels that require little modification with an open knuckle design and front disk brakes.

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Unread 05-26-2004, 04:02 PM   #2
SuperDave
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Mid year 1976 is when disc brakes started on the CJ's.
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Unread 05-26-2004, 04:08 PM   #3
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Quote:
Originally Posted by SuperDave
Mid year 1976 is when disc brakes started on the CJ's.
I am of the understanding that only the early years 70-75 are available in the narrow track. Is that correct?
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Unread 05-26-2004, 04:26 PM   #4
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You're aware that you'll have to change your transfer case too, right? The axles you want have a centered rear diff.
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Unread 05-27-2004, 01:14 PM   #5
jeepwillies
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Quote:
Originally Posted by SuperDave
Mid year 1976 is when disc brakes started on the CJ's.
Are they available in the narow track?
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Unread 05-27-2004, 01:16 PM   #6
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Quote:
Originally Posted by 80cj
You're aware that you'll have to change your transfer case too, right? The axles you want have a centered rear diff.
Nope, i was not aware!!??!! Any clue on which t-case i will need, and or adapters? thanks for your help.
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Unread 05-27-2004, 05:08 PM   #7
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Quote:
Originally Posted by jeepwillies
Nope, i was not aware!!??!! Any clue on which t-case i will need, and or adapters? thanks for your help.
Either Dana 20 or 300. The rear output has to be in line with the rear differential pinion gear. Assuming you still have the stock Dana/Spicer 18 stransfer case that come with your model, the rear output shaft is too far off to the passenger's side. More than the U joints will tolerate .

Assuming that you have the stock T-90 transmission, I believe there are Dana 20 cases that will bolt up with out an adapter. I could be wrong on this so any one knowledgeable feel free to correct me. Problem with a Dana 20 is that the low range is only 2:1. A 300 has a 2.6 low range but will not bolt up to a T-90 with out adapters and even then, I am not aware if adapters are available for a T-90 application.

Last edited by 80cj; 05-27-2004 at 05:13 PM..
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Unread 05-27-2004, 05:37 PM   #8
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i dunno either as far as what will bolt up, bound to be an adapter look at advance adaptor's website or novak's. and as far as front axles go you have 3 options, drum, narrow trac disk, and wide trac disk.
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Unread 05-27-2004, 06:22 PM   #9
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why narrow trac

if your going to match up the widths for originality thats one thing. but the simple up grade to wide trac is another. wider is better.
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Unread 05-28-2004, 04:14 AM   #10
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I could be wrong but I think the narrow trac was available until 83.
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Unread 05-28-2004, 05:03 AM   #11
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i don't it goes so far, i thought it was till 1975.

my cj 6 from 75 , comes stock with a front d30 , rear 44 , 20 tc.

but has front drum brakes ,

i need to upgrade to disk ... but i don't want to by this expensive kit,
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Unread 05-28-2004, 08:43 AM   #12
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Quote:
Originally Posted by rapha
i don't it goes so far, i thought it was till 1975.

my cj 6 from 75 , comes stock with a front d30 , rear 44 , 20 tc.

but has front drum brakes ,

i need to upgrade to disk ... but i don't want to by this expensive kit,
Here is what i am going to do. Get a pair of narrow tracks D44 and D30 with drums and perform the following.
http://www.4x4wire.com/jeep/projects/pieces/front/
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Unread 05-28-2004, 10:31 AM   #13
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dana 30s from 76 - 81 were narrow track with disc brakes.

if i am not mistaken 70 - 72 cj dana 44s were offset for the dana 18 and used the flanged shafts.

these are the axles i would be looking for if doing this swap.

another option for a rear would be an offset amc20 from a QT'd cj.

just some food for thought
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Unread 05-29-2004, 06:52 PM   #14
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Quote:
Originally Posted by rustyCJ
dana 30s from 76 - 81 were narrow track with disc brakes.

if i am not mistaken 70 - 72 cj dana 44s were offset for the dana 18 and used the flanged shafts.

these are the axles i would be looking for if doing this swap.

another option for a rear would be an offset amc20 from a QT'd cj.

just some food for thought
I believe the offset flanged 44 was available only on 71 CJ-5's. A rare one indeed. If you use the QT AMC 20 be sure to installed one piece axles.
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Unread 05-29-2004, 11:08 PM   #15
plain76cj5
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All CJ5's had narrow track axles, until the end of production in 1983. 1976 to 1981 CJ7's had narrow axles. 1982-up CJ7 & 8 had wide track axles. 1971 models use D44 axle with Dana/Spicer 18 transfer case. 1972 used D44 with Dana/Spicer 20, which would be a centered differential.
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