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Axle decision? 4.56 d30 & d44 or 4.10 8.8 & 30

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Old 07-25-2011, 06:03 PM
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Default Axle decision? 4.56 d30 & d44 or 4.10 8.8 & 30

I have an 84 parts four banger with 4.56 gears in a D30 & Wagoneer 44. I also found an 4.10 8.8 w disc breaks for 150 bucks. Just gotta buy a gear set for my locked D30 to match. I'm running a 6 inch lift with 35's. How much tougher is the 8.8?
Old 07-25-2011, 06:13 PM
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i would be worried about the D30. the 8.8 will handle anything you throw at your cherokee
Old 07-25-2011, 07:47 PM
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the 8.8 has larger shafts than the 44 by a tad. either should work for 35s though. i would save the money and buy some chromo shafts for the 30 so it can keep up with the 35s. thats just me cuz im allways broke and looking for the best bang for my buck. but if you have deep pockets i would go with the 8.8 and big boy shafts for the 30. especially cuz its locked
Old 07-25-2011, 07:53 PM
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Default while we are on the subject...

Are there any 4.10 gear kits for a Dana 30/35? If so, where can you buy them at and how hard is it to swap them out?

I will be putting 33" tires on in the fall and I believe my stock gear ratio is 3.55 I want to keep it as close to stock performance as possible as far a gas mileage is concerned.

Found this but it says it is for a TJ
Amazon.com: Superior Gear SG-D30410TJ Dana 30 4.10 Ring & Pinion for Jeep Wrangler TJ 1997-04: Automotive Amazon.com: Superior Gear SG-D30410TJ Dana 30 4.10 Ring & Pinion for Jeep Wrangler TJ 1997-04: Automotive
Old 07-25-2011, 08:08 PM
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Found this and I think it is the right one for the rear

http://www.superioraxlegear.com/d354...r-p-10691.html

What do they mean by reverse ring and pinion set for the front axle? Would this one be the correct set for the front?

http://www.superioraxlegear.com/d304...r-p-10671.html

Is there a whole lot of difference between the 4.10 and 4.11 gears? I saw both on this site.

I forgot to ask, is this all you change is the ring and pinion to correct the tire to gear ratio issues?

Last edited by Marks2000XJ; 07-25-2011 at 08:35 PM.
Old 07-25-2011, 08:09 PM
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Originally Posted by Marks2000XJ
Found this and I think it is the right one for the front

http://www.superioraxlegear.com/d354...r-p-10691.html

What do they mean by reverse ring and pinion set for the front axle? Would this one be the correct set for the front?

http://www.superioraxlegear.com/d304...r-p-10671.html

Is there a whole lot of difference between the 4.10 and 4.11 gears? I saw both on this site.
reverse = high pinion
standard = low pinion
Old 07-25-2011, 08:18 PM
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Or....sell my jeep before sinking too much dinero' into it? And buy one that is already set up properly?
Old 07-25-2011, 08:20 PM
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Originally Posted by 96_xj
reverse = high pinion
standard = low pinion
Don't know what you mean by this. I am trying to learn all this tire/gear ratio stuff but it is confusing.

You will have to spoon feed me!
Old 07-25-2011, 08:23 PM
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Originally Posted by Marks2000XJ
Don't know what you mean by this. I am trying to learn all this tire/gear ratio stuff but it is confusing.

You will have to spoon feed me!
the way the pinion sits on the gears:

low left/high right

Old 07-25-2011, 08:27 PM
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Originally Posted by 96_xj
the way the pinion sits on the gears:

low left/high right

So how would I know which was the correct one for mine? Without tearing it open?

Also, is this a waste of money? Seems everyone pretty much hates the Dana 30 and 35 axles.
Old 07-25-2011, 09:47 PM
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Originally Posted by SLOWBRAH
I have an 84 parts four banger with 4.56 gears in a D30 & Wagoneer 44. I also found an 4.10 8.8 w disc breaks for 150 bucks. Just gotta buy a gear set for my locked D30 to match. I'm running a 6 inch lift with 35's. How much tougher is the 8.8?
8.8 is a good bit stronger than the d44... bigger shafts, bigger tubes, bigger pinion, bigger ring gear, ect.


but, keep in mind that the 8.8 is NOT bolt in. all the perches on the 8.8 will have to be cut off and new shock mounts and perches will need to be welded on to fit the jeep.
Old 07-26-2011, 12:07 AM
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Originally Posted by Marks2000XJ
So how would I know which was the correct one for mine? Without tearing it open?

Also, is this a waste of money? Seems everyone pretty much hates the Dana 30 and 35 axles.
you dont need to tear it open. see the "cone" or pinion and that one is mounted up high and one is mounted down low. you can just look at yours and see.

and 35's are there limits for sure. mine has broken twice with 33's (33x10.5 even) this time I blew up the diff but i am hard on mine
Old 07-26-2011, 05:21 PM
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Originally Posted by 96_xj
you dont need to tear it open. see the "cone" or pinion and that one is mounted up high and one is mounted down low. you can just look at yours and see.

and 35's are there limits for sure. mine has broken twice with 33's (33x10.5 even) this time I blew up the diff but i am hard on mine

Do I even need to worry about changing the gears out running 33's? That will be the largest tire I ever run anyway.
Old 07-26-2011, 05:49 PM
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i do it. however i have engine modifications to make up the lack of gearing.

i would change them out to be honest
Old 07-26-2011, 06:18 PM
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Originally Posted by 96_xj
i do it. however i have engine modifications to make up the lack of gearing.

i would change them out to be honest
I just watched a video on a gear swap. That looks like a major PITA to me. Not worth the time or money.

What gear set up is in the Chrysler axle? It appears to be either 3.55 or 3.73 from info I have found. No advantage there if that is the case other than gaining a 1/4" diameter on the axle.

Last edited by Marks2000XJ; 07-26-2011 at 06:24 PM.


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