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Old 11-26-2011, 10:52 PM   #1
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Default WJ knuckle swap?

Ok so I'm looking to do a Knuckle swap from a WJ to my 92XJ.
I already have OTK steering and track bar going on so I am set there, and I pretty much know what I need part wise.

So My question is instead of having to weld on 1/4" spacers to make the hub assembly fit, could I just pull the axel shafts out of the WJ i'm already taking apart? From my research i've gathered that it's the U-joint that is binding? So I would assume that the WJ axels would then be 1/4" shorter on each side and would be a direct fit, seeing as how they are both 27 spine axles from a D30.

Is that the case, or is it that the hub assembly for the XJ is just longer than the ones that come off of a WJ and I totally misread previous threads?

Any input would be appreciated. Thanks!
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Old 11-26-2011, 11:54 PM   #2
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actually the axleshafts are the same length, it is the hubs that are different. the WJ Dana 30 knuckles stick out a 1/4" less then the XJ ones. the hub then makes up for it by the mounting surface being 1/4" off center to make up for the pivot point of the u-joint and keep the axle the same length. here is a picture to show you what i am referring to.

WJ Hub on the left and XJ Hub on the right

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XJ hub on the left, WJ hub on the right
Click the image to open in full size.
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Old 11-27-2011, 12:31 AM   #3
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Thanks for the info, I figured that was the case. I had just hoped that I was smarter than everyone else for a second I guess hahaha. Do you know If I will loose any strength with that spacers? I've heard that can happen.
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Old 11-27-2011, 01:15 AM   #4
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Actually WJ inner shafts are longer than standard XJ, TJ, ZJ, YJ Dana 30's; somewhere around ~63.5" wide I think. Main reason stock WJ tie rods and drag links won't work for us XJ owners. If the WJ's Dana 30 wasn't a low pinion, it would be a great semi-bolt-in swap axle, for somebody looking for a little wider axle.
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Old 11-27-2011, 01:23 AM   #5
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Quote:
Originally Posted by MedicXJ View Post
Thanks for the info, I figured that was the case. I had just hoped that I was smarter than everyone else for a second I guess hahaha. Do you know If I will loose any strength with that spacers? I've heard that can happen.
No, just make sure you have them tig welded with proper pre and post heating.
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Old 11-27-2011, 06:29 PM   #6
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alright, sweet thanks again for the info
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Old 11-27-2011, 06:29 PM
 
 
 
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