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4wd conversion question

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Old Sep 11, 2011 | 02:54 PM
  #1  
btm24's Avatar
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From: zephyrhills fl
Year: 1989
Model: Cherokee
Engine: 4.0 I6
Default 4wd conversion question

I have every thing in meaning, tease, drive shaft, shifter, axle lol, and tranny. So now my last problem is the vacume part. I think the front Dana 30 is out of an 86 XJ. What do I need to do vacume wise to get every thing working properly? A diagram would be very helpfull. Thank you

Brandon
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Old Sep 11, 2011 | 09:38 PM
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From: zephyrhills fl
Year: 1989
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Engine: 4.0 I6
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I dont think it will matter but heres a pic of the axle



Brandon
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Old Sep 11, 2011 | 09:45 PM
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Year: 1995
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Engine: I6 4.0L
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this should maybe help you, its better than relying on vacuum when it cable driven

https://www.cherokeeforum.com/f51/ho...si-lock-78838/
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Old Sep 11, 2011 | 09:55 PM
  #4  
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From: zephyrhills fl
Year: 1989
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I'm not looking for a posi I'm looking to just get the 4 wheel drive working. Within the next two months I'm going to have an elocker in her any ways. But I do apreshate it

Remember my truck has never been 4x4 before this so I'm not even sure where to start.

Brandon
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Old Sep 11, 2011 | 10:34 PM
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Since your this far into it why not convert to the non vacuum axles in the vacuum housing?
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Old Sep 11, 2011 | 10:40 PM
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^ i was wondering the same thing
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Old Sep 11, 2011 | 10:50 PM
  #7  
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Someone on here once explained that having the vacuum axle housing converted to use the axles from the non vacuum axle is actually a stronger setup.
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Old Sep 11, 2011 | 11:03 PM
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Originally Posted by Gee oh Dee
Someone on here once explained that having the vacuum axle housing converted to use the axles from the non vacuum axle is actually a stronger setup.

I think the CAD cast housing is the weak point of that axle.
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Old Sep 12, 2011 | 12:17 AM
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Model: Comanche
Engine: 4.0L Renix
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Disco axle housings are a little thicker to compensate for the disco area. Put a non-disco axle in place of the two disco parts and remove the bracketry and weld up the selector hole. No vacuum required.
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Old Sep 12, 2011 | 08:45 AM
  #10  
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Originally Posted by ea187
I think the CAD cast housing is the weak point of that axle.
I think you should read what BlueXJ posted. He better explained what I wanted to explain.

Originally Posted by BlueXJ
Disco axle housings are a little thicker to compensate for the disco area. Put a non-disco axle in place of the two disco parts and remove the bracketry and weld up the selector hole. No vacuum required.
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Old Sep 12, 2011 | 09:30 AM
  #11  
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Year: 1989 Comanche
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that doesnt even look like a CAD axle...
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Old Sep 13, 2011 | 12:29 PM
  #12  
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From: zephyrhills fl
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I don't know why but it seems there may have been a bit of a mix up when It
Comes to what year the front end is. But from what I've been told it is not a CAD axle tho. So now what's needed to get it to work seeing as how it's Not a CAD axle? Thanks

Brandon
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Old Sep 13, 2011 | 12:45 PM
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Year: 1989 Comanche
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put the t-case in 4 wheel drive and go

also looks like you need a breather tube for the diff yet. i ran mine up under the hood.
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Old Sep 13, 2011 | 12:57 PM
  #14  
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From: zephyrhills fl
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Originally Posted by 89eliminator
put the t-case in 4 wheel drive and go

also looks like you need a breather tube for the diff yet. i ran mine up under the hood.
Really? So there's nothing to do with vacume or any thing? Huh... That's simple hopefully I'll beable to test her out some time this weekend.

Oh and I just ran it under the hood about 3' long. I'll make it longer I'm sure. The rear axle vent line I have run up all the way next to the tool box and same thing with the tranny. Now all I need to do is put the snorkel one

Thanks again guys!

Brandon
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