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Thread: Question on '88 xj

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    Junior Member devilnutz's Avatar
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    Default Question on '88 xj

    A friend has an 88 XJ and is having problems with the 4wd, the vacuum motor went out on the front axle. The question is can you remove the locking sleeve and axle shaft from the older D30 and replace it with one from a TJ doing away with the whole vacuum assist from the XJ and YJ? The reason for asking is I have spare shafts.

    Thanks

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    you can replace the whole long side shaft by putting in a seal on the tube and runninf stock 290x shafts from a 97 and up tj or a newer XJ.

    on my YJ i just slid the collar over both shafts and welded it in place for the time being.

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    Junior Member devilnutz's Avatar
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    Thanks 91yeeper thats exactly what I needed to know. I have the long side out of my TJ and just need the seal.

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    Junior Member andy02's Avatar
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    You have to pull the carrier to get the seals in place. Take your time and note where the shims are so that you can put them back in the correct place. You should also mark the bearing caps so that they go back in the right places as well. You can get the kit with the required seals and a block off plate from Randy's Ring and Pinion for less than $50.
    Last edited by andy02; 11-22-2009 at 17:06.
    1992 XJ (broke) 3 inch lift, 31" Thornbirds
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    Zombie Slayer... JoeySnow70's Avatar
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    Quote Originally Posted by JoeySnow70 View Post
    I personaly would rather spend a little bit more and get something good from a company w/o a stained reputation.
    Good judgment comes from experience, and experience comes from bad judgment.

    1992 Cherokee XJ Buggy build in progress... Buster 2.1
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    Junior Member mrclean's Avatar
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    Just go to NAPA and get part number CR11800. I believe it's around $10. Make your own blockoff plate, that's free.
    Mark the carrier bearing caps before you pull the carrier so they can be reinstalled in the same place. You will not have to worry about the shims, on the D30 they are behind the bearings.
    Put some RTV on the outside diameter of the seal and tap it into the tube evenly......there is not a machined relief for the seal so tap it in just until it's flush with the end of the tube.
    When you install the axle, you'll have to be careful not to dislodge the seal.
    '93 YJ, SOA, 35s, locked front & rear
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    Junior Member andy02's Avatar
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    Quote Originally Posted by mrclean View Post
    Just go to NAPA and get part number CR11800. I believe it's around $10. Make your own blockoff plate, that's free.
    Mark the carrier bearing caps before you pull the carrier so they can be reinstalled in the same place. You will not have to worry about the shims, on the D30 they are behind the bearings.
    Put some RTV on the outside diameter of the seal and tap it into the tube evenly......there is not a machined relief for the seal so tap it in just until it's flush with the end of the tube.
    When you install the axle, you'll have to be careful not to dislodge the seal.
    Just an FYI. The D30 shims may or may not be behind the bearings if the axle has been re-geared. From the factory, every set that I have seen have been behind the bearings but after a re-gear, I have seen a few (not many, but a few) in front of the bearings. If yours are in front of the bearings, just make sure that they make it back into the proper place.
    1992 XJ (broke) 3 inch lift, 31" Thornbirds
    2004 Rubi - Street tires and an ugly bug guard

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