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Old 03-26-2012, 05:27 PM   #1
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Will any dana 44/30 gear work?

So in regards to gearing, I know that there is standard rotation and counter rotation i believe. What specifically will work in our jk's and do I have to match manufactures? For example if I get a good deal on some rubicon take offs for the rear then buy a new set of 4.10 fronts would that be okay?

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Old 03-26-2012, 05:31 PM   #2
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So in regards to gearing, I know that there is standard rotation and counter rotation i believe. What specifically will work in our jk's and do I have to match manufactures? For example if I get a good deal on some rubicon take offs for the rear then buy a new set of 4.10 fronts would that be okay?
I don't believe so.

Somebody explained to me awhile back that the Rubicon gears are different than than non-Rubicon gears, which is why when you try to buy gears online you have to select whether their for a "Rubicon D44" or a "non-Rubicon D44." I can't remember what the explanation was . . . .

But in any event, it explained why you don't see folks selling their "rubicon takeoff" gears. They won't fit properly in a non-Rubicon diff housing.

Hopefully somebody can stop by to really explain it, or correct me if I'm wrong.

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Old 03-26-2012, 05:51 PM   #3
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I don't believe so.

Somebody explained to me awhile back that the Rubicon gears are different than than non-Rubicon gears, which is why when you try to buy gears online you have to select whether their for a "Rubicon D44" or a "non-Rubicon D44." I can't remember what the explanation was . . . .

But in any event, it explained why you don't see folks selling their "rubicon takeoff" gears. They won't fit properly in a non-Rubicon diff housing.

Hopefully somebody can stop by to really explain it, or correct me if I'm wrong.
After reading a little about them it seems like to change my gear at all I will have to change out the differential case. everything says the cases are either 3.55 and lower cases or 3.73 and higher cases.
Guess its going to end up costing a ton to re gear from 3.21's
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Old 03-26-2012, 05:55 PM   #4
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After reading a little about them it seems like to change my gear at all I will have to change out the differential case. everything says the cases are either 3.55 and lower cases or 3.73 and higher cases.
Guess its going to end up costing a ton to re gear from 3.21's
Not true. Would you really want to but used gears in? I wouldn't.
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Old 03-26-2012, 05:55 PM   #5
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After reading a little about them it seems like to change my gear at all I will have to change out the differential case. everything says the cases are either 3.55 and lower cases or 3.73 and higher cases.
Guess its going to end up costing a ton to re gear from 3.21's
You don't have to change the diff. You will have to change the carrier inside the diff.
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Old 03-26-2012, 06:14 PM   #6
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You wanna buy new gears through the shop that's gonna do the install, to maintain warranty. Order a master kit. It's gonna run you +/- $1500, and afterwards there will be a very specific break-in procedure.

As daggo said, don't buy used gears. Like buying used underwear...might get an unwanted bonus.
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Old 03-26-2012, 06:22 PM   #7
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okay I see, that clears up some things then. I was think the whole 3rd member was different which I thought was kind of ridiculous in the first place.
and im guessing gears would be a pain in the ass to do myself as well as not be covered under warrantly?
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Old 03-26-2012, 08:09 PM   #8
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Gears are something best left to the pros.

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