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Unread 02-10-2005, 04:03 PM   #1
MJDriver
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Differential stuff

So I just bought the Comanche a few months ago, and for the first time cracked open the diffs, today. The front diff is fine, fluid's a good color and decent level. The rear is a charcoal grey color and nasty. Its a Dana 44.

- Does this mean it got water in it or the fluid heated up too much?
- I found a tag that says "Use Limited Slip Diff Oil Only"...Does this mean I have the Trac-lok diff?
- What is this oil and why doesn't the Chilton Manual mention it?




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Current - 1993 Wrangler 2.5 - mostly stock
Previous - 1989 Comanche Pioneer 4x4 Long Bed/Metric Ton Pkg
4.0, AT, D44 w/ Trak-Lok RIP

Last edited by MJDriver; 02-10-2005 at 06:28 PM..
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Unread 02-10-2005, 04:48 PM   #2
cj7xjmj
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A slight grey tinge is normal. The limited slip additive is available at the local auto parts stores, should only cost a few bucks, or you could run synthetic which all ready has this additive. I am not sure wether it means you have a trac-lock diff, but it could mean that.

While you are replacing the fluid, it is a good time to replace your vent tube. They tend to dry rot within a yr or so, and you dont want to be like me and destroy an axle cause of 3 dollars worth of rubber.



Patrick
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90 Comanche thing. Exo-cage, tube bed, with a few other things done Here is a link to some pics of it
[url]http://independent4x.com/generic67.html[/url]
[url]http://community.webshots.com/user/cj7xjmj[/url]
If you have to ask why... Its a truggy thing and you wouldn't understand
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Unread 02-10-2005, 06:30 PM   #3
MJDriver
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Vent tube? I'm sure it must be shot because the only tubes I see are brake lines.

Where is it located, what diameter and how long should the tubing be? Is it held on by itself or a ring clamp?

By the way, thanks for the heads up. Also, the fluid was charcoal grey/black. Ugh.
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4.0, AT, D44 w/ Trak-Lok RIP
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Unread 02-10-2005, 07:21 PM   #4
cj7xjmj
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There should be a nipple or something similar to it close to where the rear flex line connects to the axle. It should run a pretyy narrow diameter tube up from the axle to the frame if not higher. It is used to let the oil have room to breathe.



Patrick
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90 Comanche thing. Exo-cage, tube bed, with a few other things done Here is a link to some pics of it
[url]http://independent4x.com/generic67.html[/url]
[url]http://community.webshots.com/user/cj7xjmj[/url]
If you have to ask why... Its a truggy thing and you wouldn't understand
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Unread 02-10-2005, 11:07 PM   #5
MJDriver
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Thanks. The whole diff is coated in gunk, so I'll clean it and find the spot you're talkng about.

Thanks again.
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Previous - 1989 Comanche Pioneer 4x4 Long Bed/Metric Ton Pkg
4.0, AT, D44 w/ Trak-Lok RIP
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Unread 02-12-2005, 05:39 PM   #6
MJDriver
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I found the tube. Aside from the axles being coated in gunk the tube was in good shape, and very pliable. I will just have to keep an eye on the fluid and see how it does, I guess.

Thanks for the help.
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4.0, AT, D44 w/ Trak-Lok RIP
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