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Old 01-16-2007, 12:58 PM   #1
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Dana 44

I have a quick question about the dana 44 rear end. I found out the other day that I do have the Dana 44 on my new jeep and it says that I have the anti spin differential rear axle. Does that mean that I don't ever need to put a locker in the rear end or is taht just fancy terminology for just a limited slip rearend? And also do I have to run synthecic gear oil in the rear end?? thanks

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Old 01-16-2007, 02:28 PM   #2
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JHERRIN,
How did you find this information on your Jeep. I have been wondering the same thing.

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Old 01-16-2007, 02:41 PM   #3
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If you have a metal fill plug you have the dana 44 if its plastic you have the dana 35.

Now back to the question: You do not have a locker in the rear, you have limited slip unit, that is better than being open, but still not a locker. As far as I know I don't think you need to use an additive with it.
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Old 01-16-2007, 02:53 PM   #4
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You can use a synthetic oil, but if you have the "True Trac" Limited slip differential, you need to use an additive like:



Link
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Old 01-16-2007, 03:33 PM   #5
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You do not need to use a limited slip additive with the D44 Trac-Lok to my knowledge. It isn't a very good limited slip either. The clutches break rather easily. When I pulled mine out somelike 5 of the clutches were broke in half. It will get you by for awhile depending on your wheeling style. You will want to get used to driving with a foot on the brake and the gas to engage that limited slip. Or you can pull your e-brake on a couple of clicks to help it engage.
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Old 01-16-2007, 08:48 PM   #6
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You should use an additive with ANY clutch type limited slip, the clutches need the extra lubricant to function properly. The only limited slips that do not not need an additive are the "clutchless" units, such as the detroit trutrac.
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Old 01-16-2007, 09:16 PM   #7
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Quote:
Originally Posted by STERLING-WRANGLER View Post
JHERRIN,
How did you find this information on your Jeep. I have been wondering the same thing.
A dana44 looks kinda like a stop sign or a small dana60
the dana 35 is kinda oval looking
my old dana35 had a metal fill plug in it
http://www.industryfigure.com/berkeley/Jeep/dana44/
http://www.jeeptech.com/axle/d44.html
http://www.jeeptech.com/axle/d35c.html
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Old 01-16-2007, 09:59 PM   #8
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99.9999% of all the GL-5 axle lubes already contain the additive required by the clutch-based Tracloc limited slip differential. You have to look hard to find a suitable axle lube without it since the additive, called a 'friction modifier' is compatible with virtually all axles including those with lockers.
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Old 01-16-2007, 10:07 PM   #9
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^ correct sir
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Old 01-16-2007, 10:40 PM   #10
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I'll have to agree that they should, but, I can't tell you how many times I changed the oil in a limited slip diff and had the clutches go to chattering and grabbing, until I added some extra friction modifier. Now, I always add a bottle when doing maintenance on a clutch based LS, so I don't have to deal with it and just in case. It won't hurt it, and a bottle of the stuff doesn't cost very much, so why not buy the extra insurance?
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Old 01-17-2007, 12:26 AM   #11
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Quote:
Originally Posted by 04moneypit View Post
I'll have to agree that they should, but, I can't tell you how many times I changed the oil in a limited slip diff and had the clutches go to chattering and grabbing, until I added some extra friction modifier. Now, I always add a bottle when doing maintenance on a clutch based LS, so I don't have to deal with it and just in case. It won't hurt it, and a bottle of the stuff doesn't cost very much, so why not buy the extra insurance?
You are correct, a little extra is sometimes needed. The danger is adding too much of the stuff, only enough to stop any possible chattering should be added at the most.
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Old 01-17-2007, 10:49 AM   #12
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From the FSM

REAR AXLE
† The lubricant should have MIL-L-2105C and
API GL 5 quality specifications.
† Lubricant is a thermally stable SAE 80W-90
gear lubricant.
† Lubricant for axles intended for heavy-duty or
trailer tow use is SAE 75W-140 SYNTHETIC gear
lubricant.
NOTE: Trac-lok™ equipped axles require a friction
modifier be added to the lubricant.

And

REAR AXLE
Model 194 RBI 1.66L (3.5 pts.)*
Model 216 RBI 1.89L (4.0 pts.)*
* When equipped with Trac-lok, include 4.0 ounces of
Friction Modifier.
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Old 01-17-2007, 01:54 PM   #13
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Quote:
Originally Posted by Bluesman View Post
From the FSM

REAR AXLE
â€* The lubricant should have MIL-L-2105C and
API GL 5 quality specifications.
â€* Lubricant is a thermally stable SAE 80W-90
gear lubricant.
â€* Lubricant for axles intended for heavy-duty or
trailer tow use is SAE 75W-140 SYNTHETIC gear
lubricant.
NOTE: Trac-lokâ„¢ equipped axles require a friction
modifier be added to the lubricant.

And

REAR AXLE
Model 194 RBI 1.66L (3.5 pts.)*
Model 216 RBI 1.89L (4.0 pts.)*
* When equipped with Trac-lok, include 4.0 ounces of
Friction Modifier.
I stand corrected. Thank you for the info. My comments stemmed from the same place that Jerry's had in regards to the lube that we use.

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