New rear axle seal leak, new axle next? - JeepForum.com
 
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post #1 of 12 Old 06-17-2019, 10:34 PM Thread Starter
mustang67ford
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New rear axle seal leak, new axle next?

Got about 176K on my 99. Started to get a leak at the rear passenger axle seal so had my mechanic replace it along with the bearing. Its been about a week and the seal is still leaking. He is thinking of trying another seal, but the brand he used is a good brand, skf from NAPA I believe. Is it possible the axle could have gotten a groove in it allowing fluid to leak past the seal? I'm guessing if so I might need to get a new axle as well.

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post #2 of 12 Old 06-17-2019, 11:15 PM
97Mule
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He should have seen a groove. Have him replace seal for no labor!


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post #3 of 12 Old 06-18-2019, 01:43 AM
GmanWJ
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I replaced both of my rear axle seals/bearings with National from O'Reilly. One leaked. Replaced that one with a Timkin that I bought from Summit, which is holding. So maybe you should give the Timkin a try. Worth a shot.


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ok mostly just repairs, but we are closing in on a lift
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post #4 of 12 Old 06-18-2019, 11:39 AM Thread Starter
mustang67ford
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Thanks for the info, he is a good guy. Im sure he will treat me right. Just trying to figure out the next steps. Ill suggest the timkin. If i need a new axle. Where is a good place to go for that?
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post #5 of 12 Old 07-30-2019, 02:28 PM Thread Starter
mustang67ford
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Quote:
Originally Posted by GmanWJ View Post
I replaced both of my rear axle seals/bearings with National from O'Reilly. One leaked. Replaced that one with a Timkin that I bought from Summit, which is holding. So maybe you should give the Timkin a try. Worth a shot.
Do you have a part number for the timkin seal? Summit is not showing one for the rear axle? Thanks
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post #6 of 12 Old 07-30-2019, 02:56 PM
GmanWJ
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Quote:
Originally Posted by mustang67ford View Post
Do you have a part number for the timkin seal? Summit is not showing one for the rear axle? Thanks

I seem to recall searching a bit to find them, but these are what I installed.
Bearings: https://www.summitracing.com/parts/tmk-set31
Seals: https://www.summitracing.com/parts/tmk-2146


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ok mostly just repairs, but we are closing in on a lift
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post #7 of 12 Old 07-30-2019, 03:08 PM
FanTech
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First thing to look at (if it hasn't been done already) is to make sure the breather vent is clear. Those axle seals are not measure to be pressurized. As the diff heats up, air inside will expand causing a build up in pressure.
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post #8 of 12 Old 07-30-2019, 03:17 PM
CarlJH
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Rockauto has it as 2146
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post #9 of 12 Old 07-30-2019, 05:34 PM
Oktavius
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I've had axle seals not seal to the axle tube. I use a light coating of RTV on the OD of the seal to help seal to the axle tube. Might be leaking there and not from the seal/axle interface.
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post #10 of 12 Old 07-31-2019, 11:40 AM
xcaliber81
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I'm about to do rear bearings and seals should I be worried about using skf seals?
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post #11 of 12 Old 07-31-2019, 04:14 PM Thread Starter
mustang67ford
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Originally Posted by xcaliber81 View Post
I'm about to do rear bearings and seals should I be worried about using skf seals?
Not sure what the issue is with my axle yet. My mechanic is getting the new seal before pulling it apart. Could be the seal or could be the axle. Not sure what to do if it is the axle. Also, this appears to be the first time seal and bearing was replaced.
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post #12 of 12 Old 07-31-2019, 05:22 PM
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My rear end vibrates and its definitely the bearings
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