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Unread 03-09-2009, 05:10 PM   #1
airportdave
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TrueTrac, Axle Disconnect and Dana 30

OK, I've looked everywhere for a consistent answer to this question, but haven't received one. Why is it "not recommended" to put a Detroit TrueTrac in a '95 Dana 30 with the axle disconnect?

The follow on question, is can a TrueTrac be run up front in my '95 YJ with the stock axle disconnect system, and what, if any handling or other issues can I expect? I'd love to upgrade the front axle entirely, but the money tree in our yard died earlier this year.

We use our Jeep on both pavement and for mild wheeling.

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Unread 03-09-2009, 05:50 PM   #2
95 Lowbuck
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The Trutrac works great in the Dana 30.
You just have to accept that your front D.S. will
be turning all the time as it would with any Locker or L.S.
regardless if you run an axle disconnect or not.
Some people have had good luck running the stock D.S.
after balancing it, but some like me had to go to a C.V. type
D.S. to get rid of vibrations. (The real problem)
As for handling problems, I have them F&R and it drives like
I'm open untill you give it alot of gas in a turn, and only the rear chirps.

Last edited by 95 Lowbuck; 03-09-2009 at 07:26 PM..
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Unread 03-09-2009, 05:54 PM   #3
sitdwnandhngon
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It seems like a waste of money to me. You can get much better performance from a lunchbox locker and it costs alot less.

If you want an lsd for the rear though they have great street manners.
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Unread 03-09-2009, 06:09 PM   #4
shaggyjim
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I run one in my D44 and love it. Ya its not the cheapest way to go but I can run on the street with my hubs locked and not tell. It the same setup the Military Hummers run if I rember right. Its a gear drive torque biasing differential that can use brake modulation with your auto trany very effectively.
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Unread 03-09-2009, 06:17 PM   #5
jeeepguy
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I ran a D30, axle disco, TrueTrac setup on my ri for three years as a DD with ZERO issues. It is a great setup for a DD/occasional trail rig. And it is MUCH better than an lunchbox locker as it doesn't stress the front end when it locks up when you don't want it to on road and the on road manners are mcuh better as well.

I have several buddies running their rigs with that setup and they have zero problems as well.
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Unread 03-09-2009, 06:41 PM   #6
airportdave
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Cool- thanks for all the input. I'm leaning towards giving it a shot with a balanced front DS. This vehicle for us is most a fun summer car and not a daily driver, so it sounds like a good option.
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Last edited by airportdave; 03-09-2009 at 06:52 PM..
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Unread 03-09-2009, 06:43 PM   #7
jeepsterjc
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I'm running a TrueTrac up front with a used solid chromemoly front passenger axle off of Ebay for 24 bucks. The setup runs well. If the passenger side axle is disconnected I think the TrueTrac may get screwed up- literally. It would always wind up the TT on one side??? It just didn't seem like a smart thing to do so I put in a solid axle...
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Unread 03-09-2009, 06:47 PM   #8
yjjason
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you can get a junk yard tj axle & get rid of disco. just my 2 cents
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Unread 03-09-2009, 08:04 PM   #9
JohnRodriguez
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you cant run a trutrac with the factory 2 piece vacuum disconnect, because the trutrac has no way of installing the c-clip retainer in the passenger side. The inner shaft will slide in and out of the carrier. All you have to do is purchase a 1 piece axle for the passenger side.
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Unread 03-09-2009, 08:08 PM   #10
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Originally Posted by JohnRodriguez View Post
you cant run a trutrac with the factory 2 piece vacuum disconnect, because the trutrac has no way of installing the c-clip retainer in the passenger side. The inner shaft will slide in and out of the carrier. All you have to do is purchase a 1 piece axle for the passenger side.
What c clip are you talking about here?
When I had the stock 30 in my YJ I had my axle shafts in and out many times but do not remember a c clip.
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Unread 03-09-2009, 08:11 PM   #11
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the inner pass has a circlip on it to stop it from floating out
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Unread 03-09-2009, 08:28 PM   #12
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Originally Posted by jeepsterjc View Post
the inner pass has a circlip on it to stop it from floating out
Where? At the diff?
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Unread 03-09-2009, 08:30 PM   #13
95 Lowbuck
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Must be the early ones because my '95 didn't have a "C" clip.
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Unread 03-09-2009, 08:38 PM   #14
TSEJEEPERS
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Better yet give me a parts number.
http://www.quadratec.com/advisor/jee.../axleYJ30F.php
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Unread 03-10-2009, 04:49 AM   #15
yellow2kgt
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I have also read about this C-Clip. However, neither the stock dana 30 that came with my 90 or the 94 Dana 30 I swapped in had a c-clip on either axle. Maybe it was 87-89????
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