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Advance Adapters 231 SYE

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Old Feb 16, 2016 | 12:06 PM
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Default Advance Adapters 231 SYE

Posted this in "All Lift and Tire Questions..." but perhaps it needs it's own thread:

My mechanic is installing this for me. Seems the new housing has a different mount position for the vacuum lines. Stock housing has a side connection. New housing connects perpendicular, from the rear. Because of this he says he needs to extend the vacuum lines. Anyone with experience on this? I would have thought there'd be enough slack in the lines somewhere, as there is no mention of modifying them for install.

Stock on right, with vacuum fitting attached to the side, new housing on left:
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Old Feb 16, 2016 | 09:17 PM
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Originally Posted by ElMartillo
Posted this in "All Lift and Tire Questions..." but perhaps it needs it's own thread:

My mechanic is installing this for me. Seems the new housing has a different mount position for the vacuum lines. Stock housing has a side connection. New housing connects perpendicular, from the rear. Because of this he says he needs to extend the vacuum lines. Anyone with experience on this? I would have thought there'd be enough slack in the lines somewhere, as there is no mention of modifying them for install.

Stock on right, with vacuum fitting attached to the side, new housing on left:
It might be a little tight but should reach. He would just have to try it. It will be sticking straight out instead of close to the case. It might need to be done.
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Old Feb 17, 2016 | 06:29 AM
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Question for those more knowing than myself: Is that the vacum port that goes to the CAD? If so, why not look into the cable system, or permanently engage the shafts together? Wouldn't that eliminate the need for the vacum ports?
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Old Feb 17, 2016 | 06:41 AM
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Mine fit there no issues.
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Old Feb 17, 2016 | 07:10 AM
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I'm confused, title refers to transfer case, but text refers to CAD, the axle disconnect. I thought the preferred way of dealing with CAD is to disable it, locking the two-piece axle in the engaged position.
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Old Feb 17, 2016 | 09:32 AM
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Originally Posted by SteveMongr
I'm confused, title refers to transfer case, but text refers to CAD, the axle disconnect. I thought the preferred way of dealing with CAD is to disable it, locking the two-piece axle in the engaged position.
I never mentioned CAD or axle disconnect. This thread is about an Advance Adapters SYE housing and the vacuum lines that connect to it.
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Old Feb 17, 2016 | 10:15 AM
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Originally Posted by ElMartillo
I never mentioned CAD or axle disconnect. This thread is about an Advance Adapters SYE housing and the vacuum lines that connect to it.

Maybe he's speaking of my post. Didn't mean to divert this thread, just a question of mine that may be of relation to your topic.
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Old Feb 17, 2016 | 02:15 PM
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Turns out my mechanic decided to extend the vacuum lines, though in most cases I've heard about this is not necessary.
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Old Mar 1, 2016 | 06:00 PM
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Holy shiznit, batman.

Talk about a nightmare. I handed my XJ over to a "friend" who's a mechanic to perform the SYE install. Now, three weeks later after having to give it to a differential mechanic (the guy I should have had done the work to begin with) I finally have it back, working correctly. If I knew it would have taken this long and cost me this much in $$ and stress, I would have done it myself. Lesson learned.

Do this install yourself, or get it to someone who is 100% familiar with this procedure and is willing to give you a quote in writing.

The good news is it's done, and now done correctly.
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