What is this and what does it do? - JeepForum.com
 
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post #1 of 9 Old 04-09-2013, 08:52 PM Thread Starter
jonji01
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What is this and what does it do?

Can you help me identify the "vacuum" canister and connection on the front axle of my 1990 YJ.? Also, the connector does not want stay on. Is there a trick to making sure it stays connected?

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post #2 of 9 Old 04-09-2013, 08:58 PM
bigsquat
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that engages your front axle four 4wd. some of us take it off and use a cable to engage it.others put in later model jeep axles that eliminate the 2 piece axle completely

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: http://www.jeepforum.com/forum/showt...hp?t=613943see
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post #3 of 9 Old 04-09-2013, 09:11 PM
bigsquat
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heres a view of the internals. the passender side is a 2 piece axle and the vac motor slides the collar that joins them back and forth
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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: http://www.jeepforum.com/forum/showt...hp?t=613943see
Two fish swim into a concrete wall. One turns to the other and says 'Dam!'
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post #4 of 9 Old 04-09-2013, 09:34 PM
Anticanman
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http://www.jeepforum.com/forum/f12/t...80/?highlight=

Gotta give an option

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post #5 of 9 Old 04-09-2013, 10:36 PM
timatoe
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You'll see that referred to frequently here as the CAD. Central Axle Disconnect, the FAQ's have a whole section on it and how it functions.

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Originally Posted by George Orwell
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post #6 of 9 Old 04-10-2013, 07:31 PM Thread Starter
jonji01
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Thanks for all the help. I think I'm gonna go with the cable.
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post #7 of 9 Old 04-10-2013, 08:17 PM
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That is your flux capacitor. It boosts HP with it on, and reduces it when in 4x4 to prevent damage to the drivetrain.

All about that unibody life.
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post #8 of 9 Old 04-11-2013, 07:05 AM
mrmark
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I hated the cable, tried 2 and they wouldn't adjust to tighten and stay engaged. IMO just lock it across or go with the 1 piece

Wave as you pass me :D

The problems of owning 2 Jeeps ... I never know which one to work on or which YJ gets the next mod ...
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post #9 of 9 Old 04-11-2013, 07:55 AM
bigsquat
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i like the idea of a one piece axle if you run your diff either open or with an air or e-locker. but with a auto locker like a lock rite it sucks if your locked and try to turn, it really binds and pushes the front end

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: http://www.jeepforum.com/forum/showt...hp?t=613943see
Two fish swim into a concrete wall. One turns to the other and says 'Dam!'
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