I am about to buy my slip yoke eliminator from and AA and i am confused on which yoke i need to get. I want to use the front drive shaft out of a cherokee which uses a double cardan style joint. It says that is comes with the 1310 cv yoke or has the option of getting the 1310 non-cv style yoke. I am confused as if a double cardan joint is considered a cv-joint. thanks for the help in clearing this up.

Here is the link to the page i am looking at

http://advanceadapters.com/product/2464/50-7906.html

 

Been poking around for answers as well and found the any shaft with a 1310 style joint will fit so long as the length is right. Yes a double cardan is considered a CV because one joint will cancel out velocities of the other. The 1310 joint used to be known as the Spicer 297X and is now Spicer 5-135X or the Spicer life joints as 5-785X, AA part no. as 1-0153BF for Neapco Brute Force. Differences in the three Spicers are the forging process. A CV will give you a little more angle and ease the joint of torsional stresses associated with high shaft rotations as in highway use. I think you would need to figure what kind of angle you are looking at before deciding. I just spent a lot of time looking for answers here and there about rebuilding a double cardan joint and found little about it. So I did what I do and figured it out for myself. Good luck. Here is a link to Dana's website, lots of useful knowledge... http://www2.dana.com/expert/
Edit: a front CV shaft from a Cherokee is threaded for a 5/16-24 bolt. If you want to use a Cherokee shaft you will need to make sure the slip yoke is ready to accept that pattern and type of bolt.

 

Having gone through this issue on a 1350, here is how it works. The yokes look the same. But they are not. You would think they would just make one yoke and call it good. But the bolt holes on a non CV yoke will not line up with the holes on the CV joint. So if you are going to use a CV joint on the rear drive shaft you need to specify that. Now here is the rub. The front drive shaft from your XJ has a flange, not a yoke. So that is not an option for the AA SYE. To do this, you will need the Hack N Tap set up instead.