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Old 04-03-2014, 07:26 PM   #1
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Front axle seals

07 JKU front seal are leaking
Couple of questions
1 rough cost for Parts
2 how tough to change out

Stealership says like $650 i call BS

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Old 04-03-2014, 09:22 PM   #2
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I think you have to pull the carrier to replace the seals . That's why so spendy

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Old 04-03-2014, 09:28 PM   #3
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Yes, you have to remove the whole carrier and the shims, which need to be replaced in the same location.

You also need a tool to press the seals out. You can make the tool or get one from one of gear manufacturers.
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Old 04-03-2014, 09:28 PM   #4
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Old 04-03-2014, 09:29 PM   #5
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Double post. My browser went whacky.
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Old 04-04-2014, 05:42 AM   #6
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Like mentioned about 10.00 in seals and of course a few qts of gear oil. But.... Id definately recommend the Yukon install tool at about 100 bucks on amazon. Not a big deal if you know your way around tools. If not, Id pass it off to someone else. Search the install first. You need to be sure you know what you're doing with the locker position sensor or you'll screw it up and pull everything back apart again to replace it and cost more money to replace it.
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Old 04-04-2014, 10:20 AM   #7
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Quote:
Originally Posted by spinlock View Post
Yes, you have to remove the whole carrier and the shims, which need to be replaced in the same location.

You also need a tool to press the seals out. You can make the tool or get one from one of gear manufacturers.

This. But $650 seems to be out on the far side of crazy.
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Old 04-04-2014, 11:08 AM   #8
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Whether you, or your Dealer makes the repairs, make sure that your diff vent is opened, and not pinched, or plugged!
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Old 04-04-2014, 07:47 PM   #9
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I really need to change my passenger front seal...u-joints too.

There's a write up on how to make the tool somewhere FYI
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Old 04-05-2014, 05:52 AM   #10
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Thanks for the replys
Trying to get stealership to do it.
Only had it for 2 months roughly 2500 miles (62,500 on Odometer) since i picked it up. If they won't cover it i may do it myself.
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Old 04-05-2014, 09:50 AM   #11
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Are the JK front axles any different from TJ axles?

If they are, disregard, if they are not a 36mm socket(I think 36mm, whatever socket is used on the axle nuts on the unit bearing) on a couple extensions can be used to drive new seals in. I cant remember what i used to get the old seals out, but I think a different socket that slid into the axle tubes. Just need to watch your socket wall thickness. The first one I tried to use was a Craftsman and the walls were so thick that the seal couldnt crush into the axle tube so I used a different socket from an impact gun kit that had thinner walls.

Here is the writeup I followed, but I used extensions and sockets as my seal drivers vs. the steel pipe he used.
D-30 Axle Shaft Seal Replacement - 1

Really an easy just, just seems really bad, but once you are in there, its not so bad.
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Old 04-05-2014, 10:30 AM   #12
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Originally Posted by rjacobs View Post
Are the JK front axles any different from TJ axles? If they are, disregard, if they are not a 36mm socket(I think 36mm, whatever socket is used on the axle nuts on the unit bearing) on a couple extensions can be used to drive new seals in. I cant remember what i used to get the old seals out, but I think a different socket that slid into the axle tubes. Just need to watch your socket wall thickness. The first one I tried to use was a Craftsman and the walls were so thick that the seal couldnt crush into the axle tube so I used a different socket from an impact gun kit that had thinner walls. Here is the writeup I followed, but I used extensions and sockets as my seal drivers vs. the steel pipe he used. D-30 Axle Shaft Seal Replacement - 1 Really an easy just, just seems really bad, but once you are in there, its not so bad.
Thanks for the post
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Old 04-05-2014, 10:36 AM   #13
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Thanks for the post
Just to be clear, that was what I did on my TJ. I dont think the JK axles should be much if any different though, but I havent torn a JK axle apart.

But a Dana 30/44 front axle is all pretty much a dana 30/44 front axle.
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Old 04-05-2014, 10:43 AM   #14
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Here's what I found. The pics are another DIY.
Also mentioned HF seal driver. Going there in a minute. Curious what they have.


"I went redneck on mine... they are a VERY tight fit.

I bought from lowes:

1 long threaded rod (2' maybe) theyre in the hardware section
5 washers of varying size, up to the size I needed for the seal
2 bolts
1 12" 2 x4 with a hole drilled in the center

Take the threaded rod and stick it through the axle housing. Take the washers and organize the 2 or 3 that you need and press them onto a piece of duct tape (or tac weld them) so they stay in place together. Put your seal in place then slip them onto the rod inside the housing. Add bolt to end. line up the washers on the seal and slip the 2x4 over the rod on outside of the axle housing, add bolt and tighten.

This will keep it nice and aligned while you tap it into place. take a couple turns at a time, then tap the outside edge of the seal. Keep going til it pops into place.



took me 2 hours of banging on my fingers to put this together. took 5 min to get the seal in place after.
"
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Old 04-05-2014, 10:51 AM   #15
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To me that looks like you would not be able to seat the seal square, but maybe its just the pictures. The method of coming through the opposite axle tube(with whatever tools you come up with) helps you drive everything in nice and square.

You can get some pretty long extensions(I think 18") from harbor freight for CHEAP as well as the proper socket to use as seal drivers. I have used the big sockets for driving other seals as well. I know that Autozone, Oreilly's, etc... type places also rent the big 36mm axle nut sockets if you dont want to buy any. Just be aware that they are generally 1/2" drive so get a reducer to 3/8" to put on your extensions(1/2" extensions are pricey and heavy for the length required to drive these seals).
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Old 04-05-2014, 11:09 AM   #16
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Old 04-13-2014, 09:18 PM   #17
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Now have the GM of the dealership involved. Talked today with sales manager and he's meeting with General manager. Supposed to get a call tomorrow.
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Old 04-14-2014, 06:24 AM   #18
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Now have the GM of the dealership involved. Talked today with sales manager and he's meeting with General manager. Supposed to get a call tomorrow.

Good luck. Hopefully they cover it for you, or at least do it at a cut rate if you just bought your Jeep from them.
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Old 04-14-2014, 11:20 AM   #19
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Update:
Dropping jeep off tonight after work. Seals being replaced tomorrow.
Cost : $100
Covers parts and insurance deductable
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Old 04-15-2014, 04:39 PM   #20
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Update:
Seals replaced
$100 way better than the original $650 basically covered what the GM said was a warranty deductible. Even though not covered under the lifetime power-train warranty.

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