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Old April 11th, 2014, 09:48 AM   #1
dochereford
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Thumbs up 1999 D30 issues

I just purchased a 1999 XJ. The front ujoint on the axle are pretty bad. What should I consider replacing while I have it apart.? e.g. seals, bearings....
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Old April 11th, 2014, 10:13 AM   #2
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how many miles?
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Old April 11th, 2014, 10:38 AM   #3
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It would be a good idea to change it while you have it in your hands. You can confirm it when it's out.
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Old April 11th, 2014, 11:55 AM   #4
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144k

jbsjunk, change what?
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Old April 11th, 2014, 11:57 AM   #5
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everything.

I had to do wheel bearings/ball joints, so I went ahead and did everything else.

One of my shafts has a binding joint though now, and I f'ed up one of the tone rings for the ABS, so the relay is pulled
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Old April 11th, 2014, 02:36 PM   #6
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Quote:
Originally Posted by dochereford View Post
144k

jbsjunk, change what?
You were asking about axle joints. I said what I would do.
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Old April 11th, 2014, 04:24 PM   #7
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I think he was referring to the unit bearings. with 144k (and assuming stock tires) the bearings should still be good. Unless the jeep was abused, there is no reason to change them. That front end is so easy to work on, I would just change the joints and be done. The only other thing that needs to come apart are the brakes. So if you want to do a brake job, pads/rotors, than there is no reason to do anything else. You can leave the wheel bearing attached when you change joints. Do yourself a favor and sand the inside of the wheel bearing surface on the hub and use lots of anti-seze when putting it back together. That way if anything else needs to be fixed later, you can pull it apart easier.

Just give it a visual while you are in there. Ball joints, rod ends, and wheel bearing. At 144k miles daily drive, those should be ok. I wouldn't change it all just because the wheel joints are bad. Chances are you will have to do the wheel joints again before anything else is needed.
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Old April 11th, 2014, 10:28 PM   #8
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its not leaking any oil, but the seals on the end of the diff tube are messed up. The seals right before the ujoints...
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Old April 11th, 2014, 10:44 PM   #9
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Those aren't seals. Just hard plastic on the axle to keep most of the crap out of the tubes. The seals are internal next to the diff inside.
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Old April 11th, 2014, 10:49 PM   #10
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If you are pulling the axles, I would change the seals, and even install these http://www.4wd.com/Jeep-Drivetrain-J...FW5eOgodYFgA7Q
And make sure the sealing surfaces of the axle are smooth/sanded.
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