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Old 01-12-2011, 01:22 PM   #1
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Whats the gear ratio number?

How do you tell what the gear ratio is on a stock (dana...35?) rear axel? I heard it has something to do with these numbers but im not sure how to read em, any help wold be appreciated!!

http://www.jdesmoines.com/gallery/va...G?m=1294859455


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Old 01-12-2011, 01:42 PM   #2
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That is a tough one to read. The numbers you want are the first three(or starting from the bottom of your pic) and the outside row or the one to the right of your pic. I would spray it with degreaser and clean it better.

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Old 01-12-2011, 01:46 PM   #3
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Ok. Ill go do that right now then and post a cleaner pic for confirmation. When it comes to axel's, im not so savy.
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Old 01-12-2011, 02:14 PM   #4
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Cleaned it up a bit, this is the best i could do, This appears to be a metal type tag thats bolted in with dif cover, its on the very left side of cover. This is the correct tag, yes?

its in much higher res, if you click on the image it will be much easier to read.

http://www.jdesmoines.com/gallery/va...G?m=1294863045

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Old 01-12-2011, 05:29 PM   #5
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Ok , i got it identified, jeep says its a 5.12 geared dana 35, Are these good diifrentials? whats the diffrence between a lower gear ratio and a higher one?

the numbers btw are here in the bottom picture...
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Old 01-12-2011, 05:36 PM   #6
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Looks to be a 4.11 to me, you just missed the 4 at the beginning. Is it a 4 cylinder jeep?
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Old 01-12-2011, 05:41 PM   #7
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when was the last time you changed your diff gasket?
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Old 01-12-2011, 07:40 PM   #8
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Quote:
Originally Posted by Mike_3303 View Post
when was the last time you changed your diff gasket?
mmm, im not sure, the front was rebuilt, but the rear was never done I think..if I change that gasket, im gona wana put some guard , a skid plat on the cover or is their something for that already?

when it comes to the gears and axels, i have no clue on any of it, trans and engine now, is a diffrent story.

mmm, im not sure, the front was rebuilt, but the rear was never done I think..if I change that gasket, im gona wana put some guard , a skid plat on the cover or is their something for that already?
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Old 01-12-2011, 07:41 PM   #9
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Quote:
Originally Posted by Ibuildembig View Post
Looks to be a 4.11 to me, you just missed the 4 at the beginning. Is it a 4 cylinder jeep?
i took the little metal piece off and cleaned it, and no 4? if its a 4.11, still no loss and yes its a 4 cyl.
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Old 01-12-2011, 07:57 PM   #10
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4 cyl stock is 4.11
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Old 01-13-2011, 10:01 AM   #11
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Exactly where I was goin
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Old 01-13-2011, 11:48 AM   #12
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5.13 gears will not fit into these axles. 4.88 is as low as you can go. You have 4.11
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Old 01-13-2011, 02:46 PM   #13
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Quote:
Originally Posted by Shadeemry View Post
mmm, im not sure, the front was rebuilt, but the rear was never done I think..if I change that gasket, im gona wana put some guard , a skid plat on the cover or is their something for that already?
They do make some guard you can place over the cover like this

Four X Doctors CJ44 - Four X Doctor Diff Guard for Dana 44 Axle - Quadratec

Of you could upgrade to a stronger cover all together, this is the one i want to get for mine someday

Rokmen - Riddler Differential Covers
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Old 01-14-2011, 12:55 AM   #14
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Well thanks for the info! I'm not trusting that dealer ship again, as for the guard, I've seen some pretty expensive mistakes that would been fixed by a rock guard hence why I'm nerviouse about it.

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