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post #1 of (permalink) Old 05-05-2002, 04:06 PM
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should I be worried?

What did I do here? this is the inside of my inspection cover of my dana 44
rear axle. the 'mar' you see here is on the bottom. When I opened this up
drainage was good, some metal flakes, I felt two larger metal peices as I
cleared the bottom of the pumpkin. BTW this is a 2000 jeep wrangler. I am
assuming first time opened and only once vacuumed out or drained by a local
shop... I posted earlier on my other account that my track lock was
pop-pop-popping as I turned corners under acceleration (thanks all for
helping me narrow this down). I did add friction modifier but it was a
temporary solution as the local shops fluid and the lubegard hfm seemed to
have mucked it up enough. Any how next step was drain and start over with
clean fluid and jeeps posi friction modifier.

Now I cannot seem to locate the origin of the metal peice that may have
caused this, but now that its cleaned out can I assume I bought myself a
year before I can replace with ARB air locker or detroit? btw the gears
look nice and new still.

(picture won't paste) I'll try later
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post #2 of (permalink) Old 05-05-2002, 07:27 PM
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Re: should I be worried?

Here we go
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File Type: jpg 765322-mar.jpg (62.8 KB, 0 views)
post #3 of (permalink) Old 05-05-2002, 08:24 PM
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Re: should I be worried?

I'm a service advisor at a jeep dealer and I have seen marks like this on covers of otherwise pristine rear diffs. If there's no metal floating around the mark was probably there from the get-go. They just throw these covers in a big bin for shipping and prior to install, it's no wonder they aren't in worse shape. Good call on the OEM additive, I've had to flush out some of the stuff put in by other people and replace it with Mopar friction modifier to get proper operation. Some of these units require some spendy synthetic lube, also.
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post #4 of (permalink) Old 05-06-2002, 04:34 PM
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Re: should I be worried?

Cool on the damage not being mine (lets hope)

How long should I be expecting before the new fluid and modifier works its way in? ~60 miles now and still get a curthunk.... or an occasional tire grab (chirp chirp etc)
post #5 of (permalink) Old 05-07-2002, 11:31 AM
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Re: should I be worried?

*Sigh* I know I'm prolonging taking this puppy into the shop to see $300-$900 go for away a new locker and install fees, but few more big question I just realized last night:

Since the jeep is lifted 3" and I have new lower control arms I'd imagine the rear axle is now at a different rotation angle so in theory my fluid level would not be accurate. Since I'm still hearing the curthud and I did fill up just below the fill line as I'm supposed to while it was flat and level, could this be a case of just not having enough fluid? I put in 4 floz for the posi friction modifier + ~50 floz for the fluid. My manual threw out 2 numbers for the dana 44 depending on the RBI 56 floz or 64floz. I do not know my RBI, but since I hit the mark with the 54 floz I stopped there, assuming less is better then overfilling.

To add: how do I determine the correct amount of fluid without overfilling?
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