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aaronstephen
01-26-2016, 08:24 PM
I have a 2014 JKU sport with 3.21 gears. I will be regearing this spring and had a few questions. Currently I am running 35's so I was thinking 4.56 or 4.88 ( we also tow a popup all summer ). Debating which ones to go with still. I know I'll need a new carrier for the D30 but will I need one for the D44?

Also, with only 30k miles on the jeep do you think I would need a full master install kit?

WJCO
01-26-2016, 08:30 PM
I have a 2014 JKU sport with 3.21 gears. I will be regearing this spring and had a few questions. Currently I am running 35's so I was thinking 4.56 or 4.88 ( we also tow a popup all summer ). Debating which ones to go with still. I know I'll need a new carrier for the D30 but will I need one for the D44?

Also, with only 30k miles on the jeep do you think I would need a full master install kit?

I would go 4.88. I don't think you would need a new carrier for the D44 but I don't know for sure. I would do the master kit anyways. It comes with seals, crush sleeve, locktite, rtv, etc. You're going to need that stuff anyway even if just swapping the gears. Might as well put new bearings in while you're at it for a tiny bit more parts cost.

nknacd
01-26-2016, 08:33 PM
if you are towing, i'd go with 4.88s. And AFAIK you don't need a new carrier in the rear just the front axle needs it. I also second going with a master overhaul kit.

cozdude
01-26-2016, 08:35 PM
I have a 2014 JKU sport with 3.21 gears. I will be regearing this spring and had a few questions. Currently I am running 35's so I was thinking 4.56 or 4.88 ( we also tow a popup all summer ). Debating which ones to go with still. I know I'll need a new carrier for the D30 but will I need one for the D44?

Also, with only 30k miles on the jeep do you think I would need a full master install kit?

Do 4.88 that way if you move to 37's you will be geared properly for them as well.

As for the carrier, yes you will need a new one for front and rear. Since you will need a new carrier it might be a good time to lock the rear as well since that will become your carrier. I would leave the front open.

aaronstephen
01-26-2016, 10:59 PM
if you are towing, i'd go with 4.88s. And AFAIK you don't need a new carrier in the rear just the front axle needs it. I also second going with a master overhaul kit.


Do 4.88 that way if you move to 37's you will be geared properly for them as well.

As for the carrier, yes you will need a new one for front and rear. Since you will need a new carrier it might be a good time to lock the rear as well since that will become your carrier. I would leave the front open.

So I do or I don't need a new carrier in the rear?

cozdude
01-26-2016, 11:25 PM
So I do or I don't need a new carrier in the rear?

Read my post again.

WJCO
01-26-2016, 11:40 PM
Read my post again.

I'm confused too, lol. Why is a new carrier needed for the rear? Not arguing, just curious. I thought that it could be re-used in the rear.

cozdude
01-26-2016, 11:41 PM
I'm confused too, lol. Why is a new carrier needed for the rear? Not arguing, just curious. I thought that it could be re-used in the rear.

3.73 and up carriers can be reused but a 3.21 and lower carrier can not when you upgrade.

WJCO
01-26-2016, 11:45 PM
So I do or I don't need a new carrier in the rear?


3.73 and up carriers can be reused but a 3.21 and lower carrier can not when you upgrade.

Good to know. I just did mine and reused my D44 carrier. But I had 3.73 stock prior. Thanks for the info.

EDIT: OP, definitely do what Cozdude said and get a locker since you have to switch the carrier anyway.

cozdude
01-26-2016, 11:47 PM
Good to know. I just did mine and reused my D44 carrier. But I had 3.73 stock prior. Thanks for the info.

Your welcome

If you and the OP go back and reread my post I said that he would need a new carrier front and rear. Since he would need a new carrier I suggested he just get a locker since the locker becomes the carrier.

aaronstephen
01-27-2016, 12:30 AM
Your welcome

If you and the OP go back and reread my post I said that he would need a new carrier front and rear. Since he would need a new carrier I suggested he just get a locker since the locker becomes the carrier.

Thanks for the help

KingCopperhead
01-27-2016, 05:21 AM
Another vote for 4.88's. I have them with 35s in my 14 jk (manual) and it brings a whole new level of control when off road. Not bad on the street either.

aaronstephen
01-27-2016, 09:17 AM
Another vote for 4.88's. I have them with 35s in my 14 jk (manual) and it brings a whole new level of control when off road. Not bad on the street either.

What are your rpm's like on the highway?

KingCopperhead
01-27-2016, 09:19 AM
What are your rpm's like on the highway?

Just under 3k at 70ish. If I stay around 65 the economy light stays on.

Tallhamer
01-27-2016, 09:50 AM
I have 33s on 3.21 gears. I hate it. but im looking as well to regear to 4.88 gears. I have a a-liner camper and will love to more power.

aaronstephen
01-27-2016, 12:29 PM
Just under 3k at 70ish. If I stay around 65 the economy light stays on.

What's your mpgs like?

KingCopperhead
01-27-2016, 03:44 PM
What's your mpgs like?

15.5-17 mpg

aaronstephen
01-27-2016, 04:38 PM
15.5-17 mpg

Thanks for your help

aaronstephen
01-31-2016, 02:28 AM
Do 4.88 that way if you move to 37's you will be geared properly for them as well.

As for the carrier, yes you will need a new one for front and rear. Since you will need a new carrier it might be a good time to lock the rear as well since that will become your carrier. I would leave the front open.

According to this write up the rear D44 carrier does not need to be replaced.

http://www.grimmjeeper.com/GrimmJeeper/gear_install.html

JudeinPa
01-31-2016, 03:19 AM
This video has a lot of good info on gearing and carriers. Check out at 14:12. It backs up COZDUDE with changing out the carriers either above or below 3:21's


https://www.youtube.com/watch?v=oDVpyhKEbaw

aaronstephen
02-01-2016, 02:49 AM
This video has a lot of good info on gearing and carriers. Check out at 14:12. It backs up COZDUDE with changing out the carriers either above or below 3:21's


https://www.youtube.com/watch?v=oDVpyhKEbaw

But the JK axles are different. All over the web it's saying there's no need to replace the rear D44 carrier on a JK.

jorgelrod
02-01-2016, 03:08 AM
But the JK axles are different. All over the web it's saying there's no need to replace the rear D44 carrier on a JK.

There's no need if your gears are 3.73, if they're 3.21 you have to change carriers

OverlanderJK
02-01-2016, 03:29 AM
But the JK axles are different. All over the web it's saying there's no need to replace the rear D44 carrier on a JK.

Must be true, it's on the Internet.

WJCO
02-01-2016, 03:30 AM
Must be true, it's on the Internet.

185458..........

aaronstephen
02-01-2016, 08:21 AM
I'll call some shops today and hopefully get some clarification.

aaronstephen
02-01-2016, 03:23 PM
Must be true, it's on the Internet.

I guess the Internet and local shops are right in this case.

Rear Dana 44 on a JK use the same carrier regardless of gear ratio.

OkstateJK
02-01-2016, 10:26 PM
I guess the Internet and local shops are right in this case.

Rear Dana 44 on a JK use the same carrier regardless of gear ratio.

Late chime in, but yeah, I had a shop swap my gears from 3.21 to 4.56 in a 2014 JKU auto and I only had to buy the front carrier for the D30. If you tow a lot, 4.88's are probably right for you. I love my 4.56's but I never use it to tow anything.

RoughRider
02-06-2016, 09:57 PM
There's no need if your gears are 3.73, if they're 3.21 you have to change carriers

How much does it cost to change the carriers

swampdog
02-06-2016, 10:01 PM
75 bucks for a carrier

swampdog
02-06-2016, 10:01 PM
There will be no extra labor for changing the carrier.

jorgelrod
02-06-2016, 10:50 PM
How much does it cost to change the carriers

As stated above, an open carrier should be about $75, there should be no extra labor cost involved and if they try to charge you for that don't accept it...

NecessaryEvil
04-24-2016, 07:52 AM
Revived this older thread. Who here has had their JK re-geared that only replaced the D30 carrier? I'm speaking to the members with stock 3:21 gears. I have read threads advising of the rear D44 carrier being replaced and the opposite of that. I have been told and read the rear Dana 44 carrier break is 3:73/3:92. I have also have been told and read there is no carrier break for the rear jk Dana 44. Many ring and pinion suppliers only advise on the front Dana 30 carrier needing to be replaced.

As you can see her Yukon has a carrier break for the Dana 30.199936

And here Yukon advises there is no carrier break for the rear Dana 44 (non rubicon).199937

Just wondering others experience and opinions on the matter. I am very curious what you all have done and the longevity of the route have taken.

NecessaryEvil
04-24-2016, 07:25 PM
Oops. Edited, one sentence was all jacked up.

aaronstephen
04-25-2016, 08:03 PM
I just regeared my JK that had 3.21 gears and obviously a d30 up front. Only needed to replace the carrier in the d30.

Tylersilverjku
04-25-2016, 08:17 PM
I just regeared my JK that had 3.21 gears and obviously a d30 up front. Only needed to replace the carrier in the d30.

My sound dumb but did you also need to get new axles shafts?

aaronstephen
04-25-2016, 08:26 PM
Nope. But a great time to upgrade if you're ready. They need to be pulled when regearing.

Tylersilverjku
04-25-2016, 08:58 PM
Nope. But a great time to upgrade if you're ready. They need to be pulled when regearing.

So not necessary but I mean they'll be out anyway might as well? I'm trying to regear my Dana 30 with 3:21 to so I'm trying to get an idea of everything I'll need or if I should just let a shop figure it out! Been thinking about taking my jeep to ORE so they can do all that stuff hahaha!
Thanks!

TennJK
04-25-2016, 10:34 PM
So not necessary but I mean they'll be out anyway might as well? I'm trying to regear my Dana 30 with 3:21 to so I'm trying to get an idea of everything I'll need or if I should just let a shop figure it out! Been thinking about taking my jeep to ORE so they can do all that stuff hahaha!
Thanks!

Recommendations all go to ORE. Plus they do a great deal on a full regear. Definitely check them out!

swampdog
04-25-2016, 11:45 PM
Recommendations all go to ORE. Plus they do a great deal on a full regear. Definitely check them out!

Have you had yours done yet by Jody? If so, what did you think?

JK_BUB
04-26-2016, 01:26 PM
Recommendations all go to ORE. Plus they do a great deal on a full regear. Definitely check them out!

Agreed! ORE just did 5.13s in mine and I couldn't be happier. It's hard to believe that one of lowest prices around is this quality of work.