Front Axle Disconnect Vacuum Elimination - Page 2 - JeepForum.com
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post #16 of 41 Old 07-02-2010, 12:36 PM
timatoe
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Quote:
Originally Posted by Newfie_Jeeper View Post
Jeep put it on the YJ because its a good system and does work. It does however, need to be maintained.

Jeep also got rid of it for the TJ's because it was a problematic system even before they were 15 to 20 years old.

I'm glad you were able to get yours fixed on the cheap. Let's not turn this into a pissing contest because everyone else didn't do the same.


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post #17 of 41 Old 07-02-2010, 12:38 PM
ImpactFabWorks
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Quote:
Originally Posted by bigsquat View Post
i wish i had tried this b4 i cut off mine. not that my posilok doesnt work ok, it would be cool to do it that way.
Yea I was going to do a posi lok because the PO welded my front diff. But my vacuum motor still worked great and I have a buddy with a posi and he seems to have difficulty getting his in sometimes. I just flip the switch and drive away. and when I have to make tight turns I flip it the other way. It is very convenient to say the least

1990 YJ = The Toy/ My Daily Driver
1996 XJ= Wifes Daily Driver



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post #18 of 41 Old 07-02-2010, 02:59 PM
gtome
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Brian, you said you ran a 3 way toggle. I can see one way for off, and one for on.... what is the other for?
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post #19 of 41 Old 07-02-2010, 03:04 PM
ImpactFabWorks
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it goes on-off-on. each on side runs power to a different vacuum switch

1990 YJ = The Toy/ My Daily Driver
1996 XJ= Wifes Daily Driver



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post #20 of 41 Old 07-02-2010, 03:08 PM
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Sorry if this is ignorant, but I dont get it?? WHy would you need 2 switches for on? Redundancy??
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post #21 of 41 Old 07-02-2010, 03:11 PM
ImpactFabWorks
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because you need 2 vacuum switches. You have to have vacuum to slide the fork and connect the axle and you need vacuum on a second port to move it back and disconnect the axle. so running a 3 way toggle allows you to have only one switch inside rather than 2 separate ones

1990 YJ = The Toy/ My Daily Driver
1996 XJ= Wifes Daily Driver



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post #22 of 41 Old 07-02-2010, 03:13 PM
gtome
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Ahhhhhh got ya! Was initially thinking that taking away vac would disingauge.
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post #23 of 41 Old 07-03-2010, 08:07 AM
Newfie_Jeeper
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QUOTE]Let's not turn this into a pissing contest because everyone else didn't do the same.[/QUOTE]

Sorry if I'm too opinionated! Apperently my wife says the same!

I am very interested in the toggle switch setup. Do I understand correctly that this can give you 2 Lo?

Newfie
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post #24 of 41 Old 07-03-2010, 09:49 AM
bigsquat
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if your still open in the front. if you have an auto locker like an Aussie then its 3 wheel low. but its still better than all 4 when turning on solid ground. the only problem with 3 wheel drive is if your on ice it will send you into a 360 faster than you can react. ask me how i know! you know those relays that the carbureted jeeps have that are mounted at the back of the engine bay. they work perfict for making the toggle switch setup.
maybe brian will enlighten you with pics and a diagram

red 92 yj,4.0,dana 44 rear,xj driveshaft,rubi 4-1 tc,35"tires,smitty built winch,oba, 6" flares,hand throttle,aussie's front and back,posi-lock,6" lift.anti-wrap, hombrew bumpers, rack and sliders,cb,rear shock truss <>< ,MY BUILD:
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post #25 of 41 Old 12-26-2010, 08:35 PM
JOExFROMxNY
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anybody have a diagram or photo of this setup?
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post #26 of 41 Old 12-31-2010, 08:37 PM
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Quote:
Originally Posted by ImpactFabWorks View Post
I didn't really do a write up, But it is very straight forward. all you need is a 3 way toggle, 2 vacuum switches, wire and some vacuum line. I got my switches from the junk yard off an 80's ford. then you just run the wire so that 1 way on the toggle activates one switch and the other way activates the other. then just run a constant vacuum to the switches and run a line from each switch to the vacuum motor and have fun. once the switch has power it allows the vacuum to go past the switch. I have been considering doing a write up for some time now, But just haven't
Can anyone point to a link showing what switches he is talking about? I did the fix recommended by so many on here, took less than a minute.

http://www.jeepforum.com/forum/f12/n.../#post10708841
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post #27 of 41 Old 01-01-2011, 09:18 AM
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I wish I had done more research on this mod. I ended up purchasing an XJ
front Dana 30 for $200.00 bucks, for the High Steer Kit it had on it. I was
talked into swapping the front, right, solid, XJ shaft as an upgrade, at the
same time. Not only does this limit my options, it killed my street ability on
MPG. I still use this as a DD. I didn't use the block off plate so I still have
the Vac motor and lines. My outer seal is now leaking so instead of pulling
the axle to repair the seal, I will pull it and replace it with the 2 piece shaft
and Vac disconect, with the set up mentioned here. Thanks for the info ...




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post #28 of 41 Old 01-01-2011, 09:58 AM
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I had a perfectly working vac system and replace it with a posi loc after installing the Aussie. . Last month i got it onto my head that i wanted to remove the PL and install a solid shaft.
My next thought was to keep the stock shaft and just put the factory vac housing back in and just permantly e clip the fork over to the connected posistion as it is now.
I now get a vibe while driving can picture that wheel on the lock out fork spinning unnecessaraly
I will be reinstalling the posi lok today

Quote:
Originally Posted by Poke View Post
Spring Over is not for you.... yet





My 2.5 to 4.3 swap thread

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post #29 of 41 Old 01-01-2011, 10:24 AM
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Does anyone have any experience with switching to tj shafts? My plans was to swap shafts and pick up a Tom Woods front shaft. Any thoughts on this route?
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post #30 of 41 Old 01-01-2011, 10:28 AM
jay-h
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Quote:
Originally Posted by Newfie_Jeeper View Post
...
Its extremely simple. 90% chance your vac motor is fine. There are 4 plastic lines that have to be intact. If they crack or leak, the motor will not work. Fix the leak (easy!!!) and it will work perfect.
...
That is true, however I've gone through two vacuum switches (on the TC) in the past 4 years. Currently I have manifold vac hooked up to the 4wd side, leaving the axle engages (essentially like a TJ). Maybe in the spring I'll look at it again.
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