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Old 07-18-2010, 12:16 PM   #1
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steering u-joint fix

I have a bad u-joint in the passanger front steering knuckle. I haven't done one before, only diveshaft u-joints. It looks like i have to pull the driveshaft out to replace it. Will I mess anything pulling this out? Is there a certain procedure to follow? do I have to orientate the shaft with marks? Thanks for any help you can give.

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Old 07-18-2010, 12:51 PM   #2
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I am going to guess you mean axle u-joints vs knuckle ball joint? Anyway.. is not that difficult to replace..no issue with moving shaft out.. just go slow... just takes time depending how rusted your bolts are... You will need 12pt 13mm wrench to get the 3 backside hub bolts off. and the hub will most likey be froozen in place.. you can use a long bolt on the one of the shaft yoke ears and main axle tube to help force it out while turning our steering wheel.. Lots of good info on this site to help ya....Site Index

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Old 07-18-2010, 01:44 PM   #3
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yes you are correct, I meant axle u-joints. thanks for the help.
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Old 07-19-2010, 11:56 AM   #4
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If you take out the axle shafts....DO NOT DRIVE YOUR JEEP! Your unit bearing WILL fail. You must keep a stub shaft in it with the nut on the outside. I say pull the shafts, and take it(in a different vehicle) to a shop to have them replace the joint.
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Old 07-19-2010, 12:33 PM   #5
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Quote:
Originally Posted by lancetkenyon View Post
If you take out the axle shafts....DO NOT DRIVE YOUR JEEP! Your unit bearing WILL fail. You must keep a stub shaft in it with the nut on the outside. I say pull the shafts, and take it(in a different vehicle) to a shop to have them replace the joint.

Why go through the trouble of pulling the shafts and then not changing the U-joint yourself? A hammer, pliers, and a 3/4" socket and the u-joint is easily changed.

If you have done driveshaft joints like you said then you can do the axle. The hardest part will be getting the hub unit/shafts out. Use a bolt like said above and wedge it between the knuckle and one of the u joint ears and turn the steering wheel.
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Old 07-19-2010, 03:00 PM   #6
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Thanks, I have a friend who has a hydrolic press, soit should be easy enough to get the joint out. Well thats after I get the damn hub nut off that I'm having a hell of a time with! any suggestions while I'm saturating it in PB blaster for the next day or so ?
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Old 07-19-2010, 03:08 PM   #7
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for hub nut.. put brakes back on,(if taken off) put long screw driver in top of brake rotor slot so axle can not turn. Then get large breaker bar and remove nut...
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Old 07-19-2010, 03:15 PM   #8
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You don't have to remove the axle nut to pull the shafts out. Just take the shafts and the whole unit bearing out as one piece it's only held to the knickle with 3 bolts, much easier that way. However if you need to replace the hub then pb blaster and a breaker bar work great, put it in 4wd, that was enough resistance for me to break the nut free.
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Old 07-19-2010, 03:33 PM   #9
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thanks for all the help.
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Old 07-19-2010, 06:03 PM   #10
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do any of you know the actual size to that nut to remove the rotor. I only want to spend what I need to and get it right the first time. I measured it with a caliper and it seams to be 36mm. does this sound correct ?
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Old 07-19-2010, 06:10 PM   #11
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yup it's a 36mm
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Old 07-19-2010, 06:13 PM   #12
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thanks again .
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Old 07-19-2010, 08:23 PM   #13
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A Ball Joint press makes thing soo much easier as well. They can be rented from any local auto store or bought from Harbor frieght for $30-40 and definately a worth while invest with owning a Jeep.

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