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Old 02-26-2014, 01:40 AM   #1
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Vacuum Disconnect Dana 30

I want to eliminate the Vacuum disconnect from my Dana 30 so I can make it into a 1 piece axle instead of two. Has anyone done this and if so is it a good thing to try?

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Old 02-26-2014, 08:03 AM   #2
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Yes and yes. It eliminates the very faulty CAD and depending on year of your YJ, you could end up with bigger ujoints. (Unless you have a 95 then you already have them). I have TJ axle shafts in mine and I'm pleased. I know I've got 4WD every time I shift the transfer case. You can also remove about 10-20 feet of vacuum lines when you do it meaning less junk under the hood/jeep. The one and only bad thing I can think of is the fact that your front driveshaft will be spinning, meaning hope you have it balanced.. If you google this swap you'll find a few in depth write ups with pics. It's a very desirable upgrade. Read through those write ups and read and read lol. It'll tell you what kind of new seals you're able to use and all, because they're different with the TJ axle.

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Old 02-26-2014, 09:12 AM   #3
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It's not a difficult swap. I changed out the passenger side axle shaft out of necessity (original two piece was scored and I couldn't find another one for a decent price). I just went to pick and pull and grabbed an axle out of an XJ and it went in with no problem. You will need to either buy or fabricate a blocker plate for the CAD and you'll need a new axle shaft seal. The orginal seal is at the CAD, and when you do this swap, you want the seal at the differential.

The seal will depend on what axle you decide to drop in, so make the choice and then you can search for a seal that will fit. If you go with an XJ axle, I can get you the part numbers.
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Old 02-26-2014, 02:59 PM   #4
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Thanks, And yeah I am fine with the front spinning. My only problem is and I don't know if you would know what to do, But I got a Lock-Rite locker and my axle runs the c-clip and I cant get to it because the lockers in the way. The obvious thing is to take apart the locker which I had done before on the rear and it was simple enough same locker as the front. But the front one has a pin holding it in and I don't know if its safe to remove it.
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Old 03-01-2014, 10:21 PM   #5
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Link is a sticky at the top of the thread's section.
Here: Write-ups and How-to's

and here:

How-To: TJ Axle Shaft Conversion - JeepForum.com
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