Why is it a good thing? Isnt adjustable better? Explain to me why these are better please and thanks

 

you are kidding right. Adjustable??

 

ya explain to me im trying to learn thank you... sorry if i am a dumbass i am 16 and wanting to learn about my truck.. thats what these forums are for isnt it?

 

Yeah they are. Ok
Slip yoke is on your rear drive shaft.It slides into your transfer case. You can only lift a xj so far and it will vibrate or break your tf case.and could come out completly. A slip yoke eliminator replces this to a drive shaft that basicaly bolts to the t case. And does away with vibes pluse you can lift higher. Do a search and get more info

 

Go to second page. See the post/ Got quite abet done to jeep. His first pic is a sye

 

a slip yoke eliminator does not stop the adjustably

it just changes it to the drive shaft for a better function on lifted vehicles

 

i still dont undertand

 

here is a pic top one has no slip yoke
and the bottom does

 

A driveshaft normally has a slip joint built into it so it can shorten and lengthen as the suspension moves causing your axle to in effect move closer to and away from the transfer case.
The wonderful design our Jeep engineers came up with was to make a solid rear driveshaft for the XJ and this slip joint where the rear drive shaft slides into the transfer case. This is called a slip yoke. The bad thing about a slip yoke is that as you lift an XJ it in effect moves the rear axle farther away from the transfer case and you have less and less of the slip yoke surface meshing with the output shaft of the transfer case and you get vibes.
What a slip yoke eliminator does is puts a solid output shaft on the rear of the transfer case. You then have to get a rear drive shaft that has a slip joint built into it like your front driveshaft has. This does away with the vibes and makes all good with your lifted XJ.

 

^^2X

SYE (Slip-Yoke Eliminator) moves the "adjustability" of the drivetrain from the transfercase output shaft and locates it in the center of the driveshaft itself.

Crawl under your XJ and compare the front and rear driveshafts.
You will see the difference.
A SYE will utilize a driveshaft more like the front unit. Some having the double-cardagan joint (double U-joint), some won't. Mostly depends on the type of SYE you are looking at.

 

thank you I undertstand now! thnks

 

If you have a 4" lift you may have one. I thinking you bought it with the lift? if you don't you do need a SYE and a new DS.

 

no, it was stock and i lifted it myself. will i need one? i thought i would be fine, if i had a 6 inch lift then i would need one, how bout 4 inch

 

Every XJ is different.
The only one that can tell if you need one is you.

But rules of thumb on SYE:
These depend on the amount of vibes and how much the driver can tollerate.


Anything up to 3" on a 1984-95 You will mostlikely need one. But a 1" TC drop can be used as a band-aid for a little while.

ANY lift on the 96-01 You will need one. TC drop MAY help alleviate some vibes.

 

I'm confused, did you mean anything "over" 3"? And I thought that 96 was in the earlier category...I was hoping to get away with nothing or maybe a TC drop when I do a 2-3" lift on my 96.