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Old September 2nd, 2009, 12:11 PM   #1
mc1244
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Default I need Help on front axle upgrade/decision 94 YJ

I am finishing up a YJ build 4.0L engine 15AX trans and a ford 8.8 rearend 4:10

spring over suspension with 35's

-I have a dana 30 for the front but I have been researching how to upgrade the dana 30 and or what front axle should I go to instead of this 30 please help.
I am looking for the best and most cost effective way to have some level of security with the front end. Please give me some help

Last edited by mc1244; September 2nd, 2009 at 12:17 PM.
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Old September 2nd, 2009, 01:18 PM   #2
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The D30 is the stock YJ unit? If you're not going to be adding a lot of power and don't want to change rims...
  • Do the 1-pc shaft conversion, buy some extra stock shafts, keep your existing bolt pattern, and run it. Fix it when it breaks.
  • Do the 1-pc shaft conversion and buy blingy shafts, keep your existing bolt pattern.
  • Buy a TJ Rubi D44 front, perhaps with some spare or blingy shafts, and keep your existing bolt pattern.

Blingy shafts or a TJ Rubi D44 front would probably cost as much (or more) than picking up a 1980-up non-disco Wagoneer D44, changing it to 5x5.5", and buying a set of adapters to take the 8.8 to 5x5.5". However, you'd have to change your rims if you already have a set.
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Old September 2nd, 2009, 03:15 PM   #3
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I have been searching all day on the net
Do you have any sources to find a D44 Rubi front axle ?
Is it possible to find one used ?
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Old September 2nd, 2009, 03:27 PM   #4
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Quote:
Originally Posted by mc1244 View Post
I have been searching all day on the net
Do you have any sources to find a D44 Rubi front axle ?
Is it possible to find one used ?
Yes. Start going on boards and create threads in the Wanted forums.

I would also call Unlimited Offroad in Fenton (810-936-7000) and see if they happen to have any sitting around.
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Old September 2nd, 2009, 04:41 PM   #5
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Originally Posted by PavementPounder View Post
The D30 is the stock YJ unit? If you're not going to be adding a lot of power and don't want to change rims...
  • Do the 1-pc shaft conversion, buy some extra stock shafts, keep your existing bolt pattern, and run it. Fix it when it breaks.
  • Do the 1-pc shaft conversion and buy blingy shafts, keep your existing bolt pattern.
  • Buy a TJ Rubi D44 front, perhaps with some spare or blingy shafts, and keep your existing bolt pattern.

Blingy shafts or a TJ Rubi D44 front would probably cost as much (or more) than picking up a 1980-up non-disco Wagoneer D44, changing it to 5x5.5", and buying a set of adapters to take the 8.8 to 5x5.5". However, you'd have to change your rims if you already have a set.

Option #1.
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Old September 2nd, 2009, 05:26 PM   #6
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other option not mentioned could also be to install waggy dana 44 axles. i have a set from a 89 they have lockouts centered rear no vacuum disconnect and are a direct replacement for the stock YJ axles. weather this would be better idk, never compared the 2 directly.
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Old September 2nd, 2009, 05:46 PM   #7
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Option number 3 is extremely expensive for not much of a upgrade.

Either do option one or do a waggy 44 front converted to 5x5.5 and either adapters on the rear or a super88 kit
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Old September 2nd, 2009, 05:49 PM   #8
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Option number 3 is extremely expensive for not much of a upgrade.

Either do option one or do a waggy 44 front converted to 5x5.5 and either adapters on the rear or a super88 kit
I like this one.
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Old September 3rd, 2009, 09:15 AM   #9
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Originally Posted by Kodiak450r View Post
other option not mentioned could also be to install waggy dana 44 axles. i have a set from a 89 they have lockouts centered rear no vacuum disconnect and are a direct replacement for the stock YJ axles. weather this would be better idk, never compared the 2 directly.
This was the COA I suggested back when Kickstand was going through the same thing with his YJ. I left it out of the choices since the OP already had the 8.8. Its a nice, balanced option with further potential, but it requires wheels. Fortunately, the Jeep/Chevy pattern is pretty common on the used market in Michigan.
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Old September 11th, 2009, 09:19 PM   #10
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I have areal close set up right now, 8.8rr D30frt 410's spring over ax15 35's I have not had any issues yet so far, posi lock in the 30. I am going to 488's eventually but other than that it works great.
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